update bootstrap to version 4.3.1

14 files changed, 3674 insertions, 3099 deletions

diff --git a/vendor/twbs/bootstrap/js/src/alert.js b/vendor/twbs/bootstrap/js/src/alert.js
index f39d9d931..64e8e3843 100644
--- a/vendor/twbs/bootstrap/js/src/alert.js
+++ b/vendor/twbs/bootstrap/js/src/alert.js
@@ -1,183 +1,179 @@
-import $ from 'jquery'
-import Util from './util'
-
 /**
  * --------------------------------------------------------------------------
- * Bootstrap (v4.1.3): alert.js
+ * Bootstrap (v4.3.1): alert.js
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  * --------------------------------------------------------------------------
  */
 
-const Alert = (($) => {
-  /**
-   * ------------------------------------------------------------------------
-   * Constants
-   * ------------------------------------------------------------------------
-   */
-
-  const NAME                = 'alert'
-  const VERSION             = '4.1.3'
-  const DATA_KEY            = 'bs.alert'
-  const EVENT_KEY           = `.${DATA_KEY}`
-  const DATA_API_KEY        = '.data-api'
-  const JQUERY_NO_CONFLICT  = $.fn[NAME]
-
-  const Selector = {
-    DISMISS : '[data-dismiss="alert"]'
-  }
+import $ from 'jquery'
+import Util from './util'
+
+/**
+ * ------------------------------------------------------------------------
+ * Constants
+ * ------------------------------------------------------------------------
+ */
+
+const NAME                = 'alert'
+const VERSION             = '4.3.1'
+const DATA_KEY            = 'bs.alert'
+const EVENT_KEY           = `.${DATA_KEY}`
+const DATA_API_KEY        = '.data-api'
+const JQUERY_NO_CONFLICT  = $.fn[NAME]
+
+const Selector = {
+  DISMISS : '[data-dismiss="alert"]'
+}
+
+const Event = {
+  CLOSE          : `close${EVENT_KEY}`,
+  CLOSED         : `closed${EVENT_KEY}`,
+  CLICK_DATA_API : `click${EVENT_KEY}${DATA_API_KEY}`
+}
+
+const ClassName = {
+  ALERT : 'alert',
+  FADE  : 'fade',
+  SHOW  : 'show'
+}
+
+/**
+ * ------------------------------------------------------------------------
+ * Class Definition
+ * ------------------------------------------------------------------------
+ */
 
-  const Event = {
-    CLOSE          : `close${EVENT_KEY}`,
-    CLOSED         : `closed${EVENT_KEY}`,
-    CLICK_DATA_API : `click${EVENT_KEY}${DATA_API_KEY}`
+class Alert {
+  constructor(element) {
+    this._element = element
   }
 
-  const ClassName = {
-    ALERT : 'alert',
-    FADE  : 'fade',
-    SHOW  : 'show'
+  // Getters
+
+  static get VERSION() {
+    return VERSION
   }
 
-  /**
-   * ------------------------------------------------------------------------
-   * Class Definition
-   * ------------------------------------------------------------------------
-   */
+  // Public
 
-  class Alert {
-    constructor(element) {
-      this._element = element
+  close(element) {
+    let rootElement = this._element
+    if (element) {
+      rootElement = this._getRootElement(element)
     }
 
-    // Getters
+    const customEvent = this._triggerCloseEvent(rootElement)
 
-    static get VERSION() {
-      return VERSION
+    if (customEvent.isDefaultPrevented()) {
+      return
     }
 
-    // Public
+    this._removeElement(rootElement)
+  }
 
-    close(element) {
-      let rootElement = this._element
-      if (element) {
-        rootElement = this._getRootElement(element)
-      }
+  dispose() {
+    $.removeData(this._element, DATA_KEY)
+    this._element = null
+  }
 
-      const customEvent = this._triggerCloseEvent(rootElement)
+  // Private
 
-      if (customEvent.isDefaultPrevented()) {
-        return
-      }
+  _getRootElement(element) {
+    const selector = Util.getSelectorFromElement(element)
+    let parent     = false
 
-      this._removeElement(rootElement)
+    if (selector) {
+      parent = document.querySelector(selector)
     }
 
-    dispose() {
-      $.removeData(this._element, DATA_KEY)
-      this._element = null
+    if (!parent) {
+      parent = $(element).closest(`.${ClassName.ALERT}`)[0]
     }
 
-    // Private
+    return parent
+  }
 
-    _getRootElement(element) {
-      const selector = Util.getSelectorFromElement(element)
-      let parent     = false
+  _triggerCloseEvent(element) {
+    const closeEvent = $.Event(Event.CLOSE)
 
-      if (selector) {
-        parent = document.querySelector(selector)
-      }
-
-      if (!parent) {
-        parent = $(element).closest(`.${ClassName.ALERT}`)[0]
-      }
-
-      return parent
-    }
+    $(element).trigger(closeEvent)
+    return closeEvent
+  }
 
-    _triggerCloseEvent(element) {
-      const closeEvent = $.Event(Event.CLOSE)
+  _removeElement(element) {
+    $(element).removeClass(ClassName.SHOW)
 
-      $(element).trigger(closeEvent)
-      return closeEvent
+    if (!$(element).hasClass(ClassName.FADE)) {
+      this._destroyElement(element)
+      return
     }
 
-    _removeElement(element) {
-      $(element).removeClass(ClassName.SHOW)
+    const transitionDuration = Util.getTransitionDurationFromElement(element)
 
-      if (!$(element).hasClass(ClassName.FADE)) {
-        this._destroyElement(element)
-        return
-      }
+    $(element)
+      .one(Util.TRANSITION_END, (event) => this._destroyElement(element, event))
+      .emulateTransitionEnd(transitionDuration)
+  }
 
-      const transitionDuration = Util.getTransitionDurationFromElement(element)
+  _destroyElement(element) {
+    $(element)
+      .detach()
+      .trigger(Event.CLOSED)
+      .remove()
+  }
 
-      $(element)
-        .one(Util.TRANSITION_END, (event) => this._destroyElement(element, event))
-        .emulateTransitionEnd(transitionDuration)
-    }
+  // Static
 
-    _destroyElement(element) {
-      $(element)
-        .detach()
-        .trigger(Event.CLOSED)
-        .remove()
-    }
+  static _jQueryInterface(config) {
+    return this.each(function () {
+      const $element = $(this)
+      let data       = $element.data(DATA_KEY)
 
-    // Static
+      if (!data) {
+        data = new Alert(this)
+        $element.data(DATA_KEY, data)
+      }
 
-    static _jQueryInterface(config) {
-      return this.each(function () {
-        const $element = $(this)
-        let data       = $element.data(DATA_KEY)
+      if (config === 'close') {
+        data[config](this)
+      }
+    })
+  }
 
-        if (!data) {
-          data = new Alert(this)
-          $element.data(DATA_KEY, data)
-        }
+  static _handleDismiss(alertInstance) {
+    return function (event) {
+      if (event) {
+        event.preventDefault()
+      }
 
-        if (config === 'close') {
-          data[config](this)
-        }
-      })
+      alertInstance.close(this)
     }
+  }
+}
 
-    static _handleDismiss(alertInstance) {
-      return function (event) {
-        if (event) {
-          event.preventDefault()
-        }
+/**
+ * ------------------------------------------------------------------------
+ * Data Api implementation
+ * ------------------------------------------------------------------------
+ */
 
-        alertInstance.close(this)
-      }
-    }
-  }
+$(document).on(
+  Event.CLICK_DATA_API,
+  Selector.DISMISS,
+  Alert._handleDismiss(new Alert())
+)
 
-  /**
-   * ------------------------------------------------------------------------
-   * Data Api implementation
-   * ------------------------------------------------------------------------
-   */
-
-  $(document).on(
-    Event.CLICK_DATA_API,
-    Selector.DISMISS,
-    Alert._handleDismiss(new Alert())
-  )
-
-  /**
-   * ------------------------------------------------------------------------
-   * jQuery
-   * ------------------------------------------------------------------------
-   */
-
-  $.fn[NAME]             = Alert._jQueryInterface
-  $.fn[NAME].Constructor = Alert
-  $.fn[NAME].noConflict  = function () {
-    $.fn[NAME] = JQUERY_NO_CONFLICT
-    return Alert._jQueryInterface
-  }
+/**
+ * ------------------------------------------------------------------------
+ * jQuery
+ * ------------------------------------------------------------------------
+ */
 
-  return Alert
-})($)
+$.fn[NAME]             = Alert._jQueryInterface
+$.fn[NAME].Constructor = Alert
+$.fn[NAME].noConflict  = () => {
+  $.fn[NAME] = JQUERY_NO_CONFLICT
+  return Alert._jQueryInterface
+}
 
 export default Alert
diff --git a/vendor/twbs/bootstrap/js/src/button.js b/vendor/twbs/bootstrap/js/src/button.js
index cf181d3fc..fcf805502 100644
--- a/vendor/twbs/bootstrap/js/src/button.js
+++ b/vendor/twbs/bootstrap/js/src/button.js
@@ -1,175 +1,171 @@
-import $ from 'jquery'
-
 /**
  * --------------------------------------------------------------------------
- * Bootstrap (v4.1.3): button.js
+ * Bootstrap (v4.3.1): button.js
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  * --------------------------------------------------------------------------
  */
 
-const Button = (($) => {
-  /**
-   * ------------------------------------------------------------------------
-   * Constants
-   * ------------------------------------------------------------------------
-   */
-
-  const NAME                = 'button'
-  const VERSION             = '4.1.3'
-  const DATA_KEY            = 'bs.button'
-  const EVENT_KEY           = `.${DATA_KEY}`
-  const DATA_API_KEY        = '.data-api'
-  const JQUERY_NO_CONFLICT  = $.fn[NAME]
-
-  const ClassName = {
-    ACTIVE : 'active',
-    BUTTON : 'btn',
-    FOCUS  : 'focus'
-  }
+import $ from 'jquery'
+
+/**
+ * ------------------------------------------------------------------------
+ * Constants
+ * ------------------------------------------------------------------------
+ */
+
+const NAME                = 'button'
+const VERSION             = '4.3.1'
+const DATA_KEY            = 'bs.button'
+const EVENT_KEY           = `.${DATA_KEY}`
+const DATA_API_KEY        = '.data-api'
+const JQUERY_NO_CONFLICT  = $.fn[NAME]
+
+const ClassName = {
+  ACTIVE : 'active',
+  BUTTON : 'btn',
+  FOCUS  : 'focus'
+}
+
+const Selector = {
+  DATA_TOGGLE_CARROT : '[data-toggle^="button"]',
+  DATA_TOGGLE        : '[data-toggle="buttons"]',
+  INPUT              : 'input:not([type="hidden"])',
+  ACTIVE             : '.active',
+  BUTTON             : '.btn'
+}
+
+const Event = {
+  CLICK_DATA_API      : `click${EVENT_KEY}${DATA_API_KEY}`,
+  FOCUS_BLUR_DATA_API : `focus${EVENT_KEY}${DATA_API_KEY} ` +
+                          `blur${EVENT_KEY}${DATA_API_KEY}`
+}
 
-  const Selector = {
-    DATA_TOGGLE_CARROT : '[data-toggle^="button"]',
-    DATA_TOGGLE        : '[data-toggle="buttons"]',
-    INPUT              : 'input',
-    ACTIVE             : '.active',
-    BUTTON             : '.btn'
+/**
+ * ------------------------------------------------------------------------
+ * Class Definition
+ * ------------------------------------------------------------------------
+ */
+
+class Button {
+  constructor(element) {
+    this._element = element
   }
 
-  const Event = {
-    CLICK_DATA_API      : `click${EVENT_KEY}${DATA_API_KEY}`,
-    FOCUS_BLUR_DATA_API : `focus${EVENT_KEY}${DATA_API_KEY} ` +
-                            `blur${EVENT_KEY}${DATA_API_KEY}`
+  // Getters
+
+  static get VERSION() {
+    return VERSION
   }
 
-  /**
-   * ------------------------------------------------------------------------
-   * Class Definition
-   * ------------------------------------------------------------------------
-   */
+  // Public
 
-  class Button {
-    constructor(element) {
-      this._element = element
-    }
+  toggle() {
+    let triggerChangeEvent = true
+    let addAriaPressed = true
+    const rootElement = $(this._element).closest(
+      Selector.DATA_TOGGLE
+    )[0]
 
-    // Getters
+    if (rootElement) {
+      const input = this._element.querySelector(Selector.INPUT)
 
-    static get VERSION() {
-      return VERSION
-    }
+      if (input) {
+        if (input.type === 'radio') {
+          if (input.checked &&
+            this._element.classList.contains(ClassName.ACTIVE)) {
+            triggerChangeEvent = false
+          } else {
+            const activeElement = rootElement.querySelector(Selector.ACTIVE)
 
-    // Public
-
-    toggle() {
-      let triggerChangeEvent = true
-      let addAriaPressed = true
-      const rootElement = $(this._element).closest(
-        Selector.DATA_TOGGLE
-      )[0]
-
-      if (rootElement) {
-        const input = this._element.querySelector(Selector.INPUT)
-
-        if (input) {
-          if (input.type === 'radio') {
-            if (input.checked &&
-              this._element.classList.contains(ClassName.ACTIVE)) {
-              triggerChangeEvent = false
-            } else {
-              const activeElement = rootElement.querySelector(Selector.ACTIVE)
-
-              if (activeElement) {
-                $(activeElement).removeClass(ClassName.ACTIVE)
-              }
+            if (activeElement) {
+              $(activeElement).removeClass(ClassName.ACTIVE)
             }
           }
+        }
 
-          if (triggerChangeEvent) {
-            if (input.hasAttribute('disabled') ||
-              rootElement.hasAttribute('disabled') ||
-              input.classList.contains('disabled') ||
-              rootElement.classList.contains('disabled')) {
-              return
-            }
-            input.checked = !this._element.classList.contains(ClassName.ACTIVE)
-            $(input).trigger('change')
+        if (triggerChangeEvent) {
+          if (input.hasAttribute('disabled') ||
+            rootElement.hasAttribute('disabled') ||
+            input.classList.contains('disabled') ||
+            rootElement.classList.contains('disabled')) {
+            return
           }
-
-          input.focus()
-          addAriaPressed = false
+          input.checked = !this._element.classList.contains(ClassName.ACTIVE)
+          $(input).trigger('change')
         }
-      }
 
-      if (addAriaPressed) {
-        this._element.setAttribute('aria-pressed',
-          !this._element.classList.contains(ClassName.ACTIVE))
+        input.focus()
+        addAriaPressed = false
       }
+    }
 
-      if (triggerChangeEvent) {
-        $(this._element).toggleClass(ClassName.ACTIVE)
-      }
+    if (addAriaPressed) {
+      this._element.setAttribute('aria-pressed',
+        !this._element.classList.contains(ClassName.ACTIVE))
     }
 
-    dispose() {
-      $.removeData(this._element, DATA_KEY)
-      this._element = null
+    if (triggerChangeEvent) {
+      $(this._element).toggleClass(ClassName.ACTIVE)
     }
+  }
 
-    // Static
+  dispose() {
+    $.removeData(this._element, DATA_KEY)
+    this._element = null
+  }
 
-    static _jQueryInterface(config) {
-      return this.each(function () {
-        let data = $(this).data(DATA_KEY)
+  // Static
 
-        if (!data) {
-          data = new Button(this)
-          $(this).data(DATA_KEY, data)
-        }
+  static _jQueryInterface(config) {
+    return this.each(function () {
+      let data = $(this).data(DATA_KEY)
 
-        if (config === 'toggle') {
-          data[config]()
-        }
-      })
-    }
+      if (!data) {
+        data = new Button(this)
+        $(this).data(DATA_KEY, data)
+      }
+
+      if (config === 'toggle') {
+        data[config]()
+      }
+    })
   }
+}
 
-  /**
-   * ------------------------------------------------------------------------
-   * Data Api implementation
-   * ------------------------------------------------------------------------
-   */
+/**
+ * ------------------------------------------------------------------------
+ * Data Api implementation
+ * ------------------------------------------------------------------------
+ */
 
-  $(document)
-    .on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE_CARROT, (event) => {
-      event.preventDefault()
+$(document)
+  .on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE_CARROT, (event) => {
+    event.preventDefault()
 
-      let button = event.target
+    let button = event.target
 
-      if (!$(button).hasClass(ClassName.BUTTON)) {
-        button = $(button).closest(Selector.BUTTON)
-      }
+    if (!$(button).hasClass(ClassName.BUTTON)) {
+      button = $(button).closest(Selector.BUTTON)
+    }
 
-      Button._jQueryInterface.call($(button), 'toggle')
-    })
-    .on(Event.FOCUS_BLUR_DATA_API, Selector.DATA_TOGGLE_CARROT, (event) => {
-      const button = $(event.target).closest(Selector.BUTTON)[0]
-      $(button).toggleClass(ClassName.FOCUS, /^focus(in)?$/.test(event.type))
-    })
+    Button._jQueryInterface.call($(button), 'toggle')
+  })
+  .on(Event.FOCUS_BLUR_DATA_API, Selector.DATA_TOGGLE_CARROT, (event) => {
+    const button = $(event.target).closest(Selector.BUTTON)[0]
+    $(button).toggleClass(ClassName.FOCUS, /^focus(in)?$/.test(event.type))
+  })
 
-  /**
-   * ------------------------------------------------------------------------
-   * jQuery
-   * ------------------------------------------------------------------------
-   */
-
-  $.fn[NAME] = Button._jQueryInterface
-  $.fn[NAME].Constructor = Button
-  $.fn[NAME].noConflict = function () {
-    $.fn[NAME] = JQUERY_NO_CONFLICT
-    return Button._jQueryInterface
-  }
+/**
+ * ------------------------------------------------------------------------
+ * jQuery
+ * ------------------------------------------------------------------------
+ */
 
-  return Button
-})($)
+$.fn[NAME] = Button._jQueryInterface
+$.fn[NAME].Constructor = Button
+$.fn[NAME].noConflict = () => {
+  $.fn[NAME] = JQUERY_NO_CONFLICT
+  return Button._jQueryInterface
+}
 
 export default Button
diff --git a/vendor/twbs/bootstrap/js/src/carousel.js b/vendor/twbs/bootstrap/js/src/carousel.js
index 62af5cdb1..36176dd9c 100644
--- a/vendor/twbs/bootstrap/js/src/carousel.js
+++ b/vendor/twbs/bootstrap/js/src/carousel.js
@@ -1,520 +1,606 @@
-import $ from 'jquery'
-import Util from './util'
-
 /**
  * --------------------------------------------------------------------------
- * Bootstrap (v4.1.3): carousel.js
+ * Bootstrap (v4.3.1): carousel.js
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  * --------------------------------------------------------------------------
  */
 
-const Carousel = (($) => {
-  /**
-   * ------------------------------------------------------------------------
-   * Constants
-   * ------------------------------------------------------------------------
-   */
-
-  const NAME                   = 'carousel'
-  const VERSION                = '4.1.3'
-  const DATA_KEY               = 'bs.carousel'
-  const EVENT_KEY              = `.${DATA_KEY}`
-  const DATA_API_KEY           = '.data-api'
-  const JQUERY_NO_CONFLICT     = $.fn[NAME]
-  const ARROW_LEFT_KEYCODE     = 37 // KeyboardEvent.which value for left arrow key
-  const ARROW_RIGHT_KEYCODE    = 39 // KeyboardEvent.which value for right arrow key
-  const TOUCHEVENT_COMPAT_WAIT = 500 // Time for mouse compat events to fire after touch
-
-  const Default = {
-    interval : 5000,
-    keyboard : true,
-    slide    : false,
-    pause    : 'hover',
-    wrap     : true
-  }
+import $ from 'jquery'
+import Util from './util'
 
-  const DefaultType = {
-    interval : '(number|boolean)',
-    keyboard : 'boolean',
-    slide    : '(boolean|string)',
-    pause    : '(string|boolean)',
-    wrap     : 'boolean'
-  }
+/**
+ * ------------------------------------------------------------------------
+ * Constants
+ * ------------------------------------------------------------------------
+ */
 
-  const Direction = {
-    NEXT     : 'next',
-    PREV     : 'prev',
-    LEFT     : 'left',
-    RIGHT    : 'right'
-  }
+const NAME                   = 'carousel'
+const VERSION                = '4.3.1'
+const DATA_KEY               = 'bs.carousel'
+const EVENT_KEY              = `.${DATA_KEY}`
+const DATA_API_KEY           = '.data-api'
+const JQUERY_NO_CONFLICT     = $.fn[NAME]
+const ARROW_LEFT_KEYCODE     = 37 // KeyboardEvent.which value for left arrow key
+const ARROW_RIGHT_KEYCODE    = 39 // KeyboardEvent.which value for right arrow key
+const TOUCHEVENT_COMPAT_WAIT = 500 // Time for mouse compat events to fire after touch
+const SWIPE_THRESHOLD        = 40
+
+const Default = {
+  interval : 5000,
+  keyboard : true,
+  slide    : false,
+  pause    : 'hover',
+  wrap     : true,
+  touch    : true
+}
+
+const DefaultType = {
+  interval : '(number|boolean)',
+  keyboard : 'boolean',
+  slide    : '(boolean|string)',
+  pause    : '(string|boolean)',
+  wrap     : 'boolean',
+  touch    : 'boolean'
+}
+
+const Direction = {
+  NEXT     : 'next',
+  PREV     : 'prev',
+  LEFT     : 'left',
+  RIGHT    : 'right'
+}
+
+const Event = {
+  SLIDE          : `slide${EVENT_KEY}`,
+  SLID           : `slid${EVENT_KEY}`,
+  KEYDOWN        : `keydown${EVENT_KEY}`,
+  MOUSEENTER     : `mouseenter${EVENT_KEY}`,
+  MOUSELEAVE     : `mouseleave${EVENT_KEY}`,
+  TOUCHSTART     : `touchstart${EVENT_KEY}`,
+  TOUCHMOVE      : `touchmove${EVENT_KEY}`,
+  TOUCHEND       : `touchend${EVENT_KEY}`,
+  POINTERDOWN    : `pointerdown${EVENT_KEY}`,
+  POINTERUP      : `pointerup${EVENT_KEY}`,
+  DRAG_START     : `dragstart${EVENT_KEY}`,
+  LOAD_DATA_API  : `load${EVENT_KEY}${DATA_API_KEY}`,
+  CLICK_DATA_API : `click${EVENT_KEY}${DATA_API_KEY}`
+}
+
+const ClassName = {
+  CAROUSEL      : 'carousel',
+  ACTIVE        : 'active',
+  SLIDE         : 'slide',
+  RIGHT         : 'carousel-item-right',
+  LEFT          : 'carousel-item-left',
+  NEXT          : 'carousel-item-next',
+  PREV          : 'carousel-item-prev',
+  ITEM          : 'carousel-item',
+  POINTER_EVENT : 'pointer-event'
+}
+
+const Selector = {
+  ACTIVE      : '.active',
+  ACTIVE_ITEM : '.active.carousel-item',
+  ITEM        : '.carousel-item',
+  ITEM_IMG    : '.carousel-item img',
+  NEXT_PREV   : '.carousel-item-next, .carousel-item-prev',
+  INDICATORS  : '.carousel-indicators',
+  DATA_SLIDE  : '[data-slide], [data-slide-to]',
+  DATA_RIDE   : '[data-ride="carousel"]'
+}
+
+const PointerType = {
+  TOUCH : 'touch',
+  PEN   : 'pen'
+}
 
-  const Event = {
-    SLIDE          : `slide${EVENT_KEY}`,
-    SLID           : `slid${EVENT_KEY}`,
-    KEYDOWN        : `keydown${EVENT_KEY}`,
-    MOUSEENTER     : `mouseenter${EVENT_KEY}`,
-    MOUSELEAVE     : `mouseleave${EVENT_KEY}`,
-    TOUCHEND       : `touchend${EVENT_KEY}`,
-    LOAD_DATA_API  : `load${EVENT_KEY}${DATA_API_KEY}`,
-    CLICK_DATA_API : `click${EVENT_KEY}${DATA_API_KEY}`
+/**
+ * ------------------------------------------------------------------------
+ * Class Definition
+ * ------------------------------------------------------------------------
+ */
+class Carousel {
+  constructor(element, config) {
+    this._items         = null
+    this._interval      = null
+    this._activeElement = null
+    this._isPaused      = false
+    this._isSliding     = false
+    this.touchTimeout   = null
+    this.touchStartX    = 0
+    this.touchDeltaX    = 0
+
+    this._config            = this._getConfig(config)
+    this._element           = element
+    this._indicatorsElement = this._element.querySelector(Selector.INDICATORS)
+    this._touchSupported    = 'ontouchstart' in document.documentElement || navigator.maxTouchPoints > 0
+    this._pointerEvent      = Boolean(window.PointerEvent || window.MSPointerEvent)
+
+    this._addEventListeners()
   }
 
-  const ClassName = {
-    CAROUSEL : 'carousel',
-    ACTIVE   : 'active',
-    SLIDE    : 'slide',
-    RIGHT    : 'carousel-item-right',
-    LEFT     : 'carousel-item-left',
-    NEXT     : 'carousel-item-next',
-    PREV     : 'carousel-item-prev',
-    ITEM     : 'carousel-item'
+  // Getters
+
+  static get VERSION() {
+    return VERSION
   }
 
-  const Selector = {
-    ACTIVE      : '.active',
-    ACTIVE_ITEM : '.active.carousel-item',
-    ITEM        : '.carousel-item',
-    NEXT_PREV   : '.carousel-item-next, .carousel-item-prev',
-    INDICATORS  : '.carousel-indicators',
-    DATA_SLIDE  : '[data-slide], [data-slide-to]',
-    DATA_RIDE   : '[data-ride="carousel"]'
+  static get Default() {
+    return Default
   }
 
-  /**
-   * ------------------------------------------------------------------------
-   * Class Definition
-   * ------------------------------------------------------------------------
-   */
+  // Public
 
-  class Carousel {
-    constructor(element, config) {
-      this._items              = null
-      this._interval           = null
-      this._activeElement      = null
+  next() {
+    if (!this._isSliding) {
+      this._slide(Direction.NEXT)
+    }
+  }
 
-      this._isPaused           = false
-      this._isSliding          = false
+  nextWhenVisible() {
+    // Don't call next when the page isn't visible
+    // or the carousel or its parent isn't visible
+    if (!document.hidden &&
+      ($(this._element).is(':visible') && $(this._element).css('visibility') !== 'hidden')) {
+      this.next()
+    }
+  }
 
-      this.touchTimeout        = null
+  prev() {
+    if (!this._isSliding) {
+      this._slide(Direction.PREV)
+    }
+  }
 
-      this._config             = this._getConfig(config)
-      this._element            = $(element)[0]
-      this._indicatorsElement  = this._element.querySelector(Selector.INDICATORS)
+  pause(event) {
+    if (!event) {
+      this._isPaused = true
+    }
 
-      this._addEventListeners()
+    if (this._element.querySelector(Selector.NEXT_PREV)) {
+      Util.triggerTransitionEnd(this._element)
+      this.cycle(true)
     }
 
-    // Getters
+    clearInterval(this._interval)
+    this._interval = null
+  }
 
-    static get VERSION() {
-      return VERSION
+  cycle(event) {
+    if (!event) {
+      this._isPaused = false
     }
 
-    static get Default() {
-      return Default
+    if (this._interval) {
+      clearInterval(this._interval)
+      this._interval = null
     }
 
-    // Public
-
-    next() {
-      if (!this._isSliding) {
-        this._slide(Direction.NEXT)
-      }
+    if (this._config.interval && !this._isPaused) {
+      this._interval = setInterval(
+        (document.visibilityState ? this.nextWhenVisible : this.next).bind(this),
+        this._config.interval
+      )
     }
+  }
 
-    nextWhenVisible() {
-      // Don't call next when the page isn't visible
-      // or the carousel or its parent isn't visible
-      if (!document.hidden &&
-        ($(this._element).is(':visible') && $(this._element).css('visibility') !== 'hidden')) {
-        this.next()
-      }
+  to(index) {
+    this._activeElement = this._element.querySelector(Selector.ACTIVE_ITEM)
+
+    const activeIndex = this._getItemIndex(this._activeElement)
+
+    if (index > this._items.length - 1 || index < 0) {
+      return
     }
 
-    prev() {
-      if (!this._isSliding) {
-        this._slide(Direction.PREV)
-      }
+    if (this._isSliding) {
+      $(this._element).one(Event.SLID, () => this.to(index))
+      return
     }
 
-    pause(event) {
-      if (!event) {
-        this._isPaused = true
-      }
+    if (activeIndex === index) {
+      this.pause()
+      this.cycle()
+      return
+    }
 
-      if (this._element.querySelector(Selector.NEXT_PREV)) {
-        Util.triggerTransitionEnd(this._element)
-        this.cycle(true)
-      }
+    const direction = index > activeIndex
+      ? Direction.NEXT
+      : Direction.PREV
 
-      clearInterval(this._interval)
-      this._interval = null
-    }
+    this._slide(direction, this._items[index])
+  }
 
-    cycle(event) {
-      if (!event) {
-        this._isPaused = false
-      }
+  dispose() {
+    $(this._element).off(EVENT_KEY)
+    $.removeData(this._element, DATA_KEY)
+
+    this._items             = null
+    this._config            = null
+    this._element           = null
+    this._interval          = null
+    this._isPaused          = null
+    this._isSliding         = null
+    this._activeElement     = null
+    this._indicatorsElement = null
+  }
 
-      if (this._interval) {
-        clearInterval(this._interval)
-        this._interval = null
-      }
+  // Private
 
-      if (this._config.interval && !this._isPaused) {
-        this._interval = setInterval(
-          (document.visibilityState ? this.nextWhenVisible : this.next).bind(this),
-          this._config.interval
-        )
-      }
+  _getConfig(config) {
+    config = {
+      ...Default,
+      ...config
     }
+    Util.typeCheckConfig(NAME, config, DefaultType)
+    return config
+  }
 
-    to(index) {
-      this._activeElement = this._element.querySelector(Selector.ACTIVE_ITEM)
+  _handleSwipe() {
+    const absDeltax = Math.abs(this.touchDeltaX)
 
-      const activeIndex = this._getItemIndex(this._activeElement)
+    if (absDeltax <= SWIPE_THRESHOLD) {
+      return
+    }
 
-      if (index > this._items.length - 1 || index < 0) {
-        return
-      }
+    const direction = absDeltax / this.touchDeltaX
 
-      if (this._isSliding) {
-        $(this._element).one(Event.SLID, () => this.to(index))
-        return
-      }
+    // swipe left
+    if (direction > 0) {
+      this.prev()
+    }
 
-      if (activeIndex === index) {
-        this.pause()
-        this.cycle()
-        return
-      }
+    // swipe right
+    if (direction < 0) {
+      this.next()
+    }
+  }
 
-      const direction = index > activeIndex
-        ? Direction.NEXT
-        : Direction.PREV
+  _addEventListeners() {
+    if (this._config.keyboard) {
+      $(this._element)
+        .on(Event.KEYDOWN, (event) => this._keydown(event))
+    }
 
-      this._slide(direction, this._items[index])
+    if (this._config.pause === 'hover') {
+      $(this._element)
+        .on(Event.MOUSEENTER, (event) => this.pause(event))
+        .on(Event.MOUSELEAVE, (event) => this.cycle(event))
     }
 
-    dispose() {
-      $(this._element).off(EVENT_KEY)
-      $.removeData(this._element, DATA_KEY)
+    if (this._config.touch) {
+      this._addTouchEventListeners()
+    }
+  }
 
-      this._items             = null
-      this._config            = null
-      this._element           = null
-      this._interval          = null
-      this._isPaused          = null
-      this._isSliding         = null
-      this._activeElement     = null
-      this._indicatorsElement = null
+  _addTouchEventListeners() {
+    if (!this._touchSupported) {
+      return
     }
 
-    // Private
+    const start = (event) => {
+      if (this._pointerEvent && PointerType[event.originalEvent.pointerType.toUpperCase()]) {
+        this.touchStartX = event.originalEvent.clientX
+      } else if (!this._pointerEvent) {
+        this.touchStartX = event.originalEvent.touches[0].clientX
+      }
+    }
 
-    _getConfig(config) {
-      config = {
-        ...Default,
-        ...config
+    const move = (event) => {
+      // ensure swiping with one touch and not pinching
+      if (event.originalEvent.touches && event.originalEvent.touches.length > 1) {
+        this.touchDeltaX = 0
+      } else {
+        this.touchDeltaX = event.originalEvent.touches[0].clientX - this.touchStartX
       }
-      Util.typeCheckConfig(NAME, config, DefaultType)
-      return config
     }
 
-    _addEventListeners() {
-      if (this._config.keyboard) {
-        $(this._element)
-          .on(Event.KEYDOWN, (event) => this._keydown(event))
+    const end = (event) => {
+      if (this._pointerEvent && PointerType[event.originalEvent.pointerType.toUpperCase()]) {
+        this.touchDeltaX = event.originalEvent.clientX - this.touchStartX
       }
 
+      this._handleSwipe()
       if (this._config.pause === 'hover') {
-        $(this._element)
-          .on(Event.MOUSEENTER, (event) => this.pause(event))
-          .on(Event.MOUSELEAVE, (event) => this.cycle(event))
-        if ('ontouchstart' in document.documentElement) {
-          // If it's a touch-enabled device, mouseenter/leave are fired as
-          // part of the mouse compatibility events on first tap - the carousel
-          // would stop cycling until user tapped out of it;
-          // here, we listen for touchend, explicitly pause the carousel
-          // (as if it's the second time we tap on it, mouseenter compat event
-          // is NOT fired) and after a timeout (to allow for mouse compatibility
-          // events to fire) we explicitly restart cycling
-          $(this._element).on(Event.TOUCHEND, () => {
-            this.pause()
-            if (this.touchTimeout) {
-              clearTimeout(this.touchTimeout)
-            }
-            this.touchTimeout = setTimeout((event) => this.cycle(event), TOUCHEVENT_COMPAT_WAIT + this._config.interval)
-          })
+        // If it's a touch-enabled device, mouseenter/leave are fired as
+        // part of the mouse compatibility events on first tap - the carousel
+        // would stop cycling until user tapped out of it;
+        // here, we listen for touchend, explicitly pause the carousel
+        // (as if it's the second time we tap on it, mouseenter compat event
+        // is NOT fired) and after a timeout (to allow for mouse compatibility
+        // events to fire) we explicitly restart cycling
+
+        this.pause()
+        if (this.touchTimeout) {
+          clearTimeout(this.touchTimeout)
         }
+        this.touchTimeout = setTimeout((event) => this.cycle(event), TOUCHEVENT_COMPAT_WAIT + this._config.interval)
       }
     }
 
-    _keydown(event) {
-      if (/input|textarea/i.test(event.target.tagName)) {
-        return
-      }
+    $(this._element.querySelectorAll(Selector.ITEM_IMG)).on(Event.DRAG_START, (e) => e.preventDefault())
+    if (this._pointerEvent) {
+      $(this._element).on(Event.POINTERDOWN, (event) => start(event))
+      $(this._element).on(Event.POINTERUP, (event) => end(event))
 
-      switch (event.which) {
-        case ARROW_LEFT_KEYCODE:
-          event.preventDefault()
-          this.prev()
-          break
-        case ARROW_RIGHT_KEYCODE:
-          event.preventDefault()
-          this.next()
-          break
-        default:
-      }
+      this._element.classList.add(ClassName.POINTER_EVENT)
+    } else {
+      $(this._element).on(Event.TOUCHSTART, (event) => start(event))
+      $(this._element).on(Event.TOUCHMOVE, (event) => move(event))
+      $(this._element).on(Event.TOUCHEND, (event) => end(event))
     }
+  }
 
-    _getItemIndex(element) {
-      this._items = element && element.parentNode
-        ? [].slice.call(element.parentNode.querySelectorAll(Selector.ITEM))
-        : []
-      return this._items.indexOf(element)
+  _keydown(event) {
+    if (/input|textarea/i.test(event.target.tagName)) {
+      return
     }
 
-    _getItemByDirection(direction, activeElement) {
-      const isNextDirection = direction === Direction.NEXT
-      const isPrevDirection = direction === Direction.PREV
-      const activeIndex     = this._getItemIndex(activeElement)
-      const lastItemIndex   = this._items.length - 1
-      const isGoingToWrap   = isPrevDirection && activeIndex === 0 ||
-                              isNextDirection && activeIndex === lastItemIndex
-
-      if (isGoingToWrap && !this._config.wrap) {
-        return activeElement
-      }
-
-      const delta     = direction === Direction.PREV ? -1 : 1
-      const itemIndex = (activeIndex + delta) % this._items.length
-
-      return itemIndex === -1
-        ? this._items[this._items.length - 1] : this._items[itemIndex]
+    switch (event.which) {
+      case ARROW_LEFT_KEYCODE:
+        event.preventDefault()
+        this.prev()
+        break
+      case ARROW_RIGHT_KEYCODE:
+        event.preventDefault()
+        this.next()
+        break
+      default:
     }
+  }
 
-    _triggerSlideEvent(relatedTarget, eventDirectionName) {
-      const targetIndex = this._getItemIndex(relatedTarget)
-      const fromIndex = this._getItemIndex(this._element.querySelector(Selector.ACTIVE_ITEM))
-      const slideEvent = $.Event(Event.SLIDE, {
-        relatedTarget,
-        direction: eventDirectionName,
-        from: fromIndex,
-        to: targetIndex
-      })
+  _getItemIndex(element) {
+    this._items = element && element.parentNode
+      ? [].slice.call(element.parentNode.querySelectorAll(Selector.ITEM))
+      : []
+    return this._items.indexOf(element)
+  }
 
-      $(this._element).trigger(slideEvent)
+  _getItemByDirection(direction, activeElement) {
+    const isNextDirection = direction === Direction.NEXT
+    const isPrevDirection = direction === Direction.PREV
+    const activeIndex     = this._getItemIndex(activeElement)
+    const lastItemIndex   = this._items.length - 1
+    const isGoingToWrap   = isPrevDirection && activeIndex === 0 ||
+                            isNextDirection && activeIndex === lastItemIndex
 
-      return slideEvent
+    if (isGoingToWrap && !this._config.wrap) {
+      return activeElement
     }
 
-    _setActiveIndicatorElement(element) {
-      if (this._indicatorsElement) {
-        const indicators = [].slice.call(this._indicatorsElement.querySelectorAll(Selector.ACTIVE))
-        $(indicators)
-          .removeClass(ClassName.ACTIVE)
+    const delta     = direction === Direction.PREV ? -1 : 1
+    const itemIndex = (activeIndex + delta) % this._items.length
 
-        const nextIndicator = this._indicatorsElement.children[
-          this._getItemIndex(element)
-        ]
+    return itemIndex === -1
+      ? this._items[this._items.length - 1] : this._items[itemIndex]
+  }
 
-        if (nextIndicator) {
-          $(nextIndicator).addClass(ClassName.ACTIVE)
-        }
-      }
-    }
+  _triggerSlideEvent(relatedTarget, eventDirectionName) {
+    const targetIndex = this._getItemIndex(relatedTarget)
+    const fromIndex = this._getItemIndex(this._element.querySelector(Selector.ACTIVE_ITEM))
+    const slideEvent = $.Event(Event.SLIDE, {
+      relatedTarget,
+      direction: eventDirectionName,
+      from: fromIndex,
+      to: targetIndex
+    })
 
-    _slide(direction, element) {
-      const activeElement = this._element.querySelector(Selector.ACTIVE_ITEM)
-      const activeElementIndex = this._getItemIndex(activeElement)
-      const nextElement   = element || activeElement &&
-        this._getItemByDirection(direction, activeElement)
-      const nextElementIndex = this._getItemIndex(nextElement)
-      const isCycling = Boolean(this._interval)
+    $(this._element).trigger(slideEvent)
 
-      let directionalClassName
-      let orderClassName
-      let eventDirectionName
+    return slideEvent
+  }
 
-      if (direction === Direction.NEXT) {
-        directionalClassName = ClassName.LEFT
-        orderClassName = ClassName.NEXT
-        eventDirectionName = Direction.LEFT
-      } else {
-        directionalClassName = ClassName.RIGHT
-        orderClassName = ClassName.PREV
-        eventDirectionName = Direction.RIGHT
-      }
+  _setActiveIndicatorElement(element) {
+    if (this._indicatorsElement) {
+      const indicators = [].slice.call(this._indicatorsElement.querySelectorAll(Selector.ACTIVE))
+      $(indicators)
+        .removeClass(ClassName.ACTIVE)
 
-      if (nextElement && $(nextElement).hasClass(ClassName.ACTIVE)) {
-        this._isSliding = false
-        return
-      }
+      const nextIndicator = this._indicatorsElement.children[
+        this._getItemIndex(element)
+      ]
 
-      const slideEvent = this._triggerSlideEvent(nextElement, eventDirectionName)
-      if (slideEvent.isDefaultPrevented()) {
-        return
-      }
-
-      if (!activeElement || !nextElement) {
-        // Some weirdness is happening, so we bail
-        return
+      if (nextIndicator) {
+        $(nextIndicator).addClass(ClassName.ACTIVE)
       }
+    }
+  }
 
-      this._isSliding = true
+  _slide(direction, element) {
+    const activeElement = this._element.querySelector(Selector.ACTIVE_ITEM)
+    const activeElementIndex = this._getItemIndex(activeElement)
+    const nextElement   = element || activeElement &&
+      this._getItemByDirection(direction, activeElement)
+    const nextElementIndex = this._getItemIndex(nextElement)
+    const isCycling = Boolean(this._interval)
+
+    let directionalClassName
+    let orderClassName
+    let eventDirectionName
+
+    if (direction === Direction.NEXT) {
+      directionalClassName = ClassName.LEFT
+      orderClassName = ClassName.NEXT
+      eventDirectionName = Direction.LEFT
+    } else {
+      directionalClassName = ClassName.RIGHT
+      orderClassName = ClassName.PREV
+      eventDirectionName = Direction.RIGHT
+    }
 
-      if (isCycling) {
-        this.pause()
-      }
+    if (nextElement && $(nextElement).hasClass(ClassName.ACTIVE)) {
+      this._isSliding = false
+      return
+    }
 
-      this._setActiveIndicatorElement(nextElement)
+    const slideEvent = this._triggerSlideEvent(nextElement, eventDirectionName)
+    if (slideEvent.isDefaultPrevented()) {
+      return
+    }
 
-      const slidEvent = $.Event(Event.SLID, {
-        relatedTarget: nextElement,
-        direction: eventDirectionName,
-        from: activeElementIndex,
-        to: nextElementIndex
-      })
+    if (!activeElement || !nextElement) {
+      // Some weirdness is happening, so we bail
+      return
+    }
 
-      if ($(this._element).hasClass(ClassName.SLIDE)) {
-        $(nextElement).addClass(orderClassName)
+    this._isSliding = true
 
-        Util.reflow(nextElement)
+    if (isCycling) {
+      this.pause()
+    }
 
-        $(activeElement).addClass(directionalClassName)
-        $(nextElement).addClass(directionalClassName)
+    this._setActiveIndicatorElement(nextElement)
 
-        const transitionDuration = Util.getTransitionDurationFromElement(activeElement)
+    const slidEvent = $.Event(Event.SLID, {
+      relatedTarget: nextElement,
+      direction: eventDirectionName,
+      from: activeElementIndex,
+      to: nextElementIndex
+    })
 
-        $(activeElement)
-          .one(Util.TRANSITION_END, () => {
-            $(nextElement)
-              .removeClass(`${directionalClassName} ${orderClassName}`)
-              .addClass(ClassName.ACTIVE)
+    if ($(this._element).hasClass(ClassName.SLIDE)) {
+      $(nextElement).addClass(orderClassName)
 
-            $(activeElement).removeClass(`${ClassName.ACTIVE} ${orderClassName} ${directionalClassName}`)
+      Util.reflow(nextElement)
 
-            this._isSliding = false
+      $(activeElement).addClass(directionalClassName)
+      $(nextElement).addClass(directionalClassName)
 
-            setTimeout(() => $(this._element).trigger(slidEvent), 0)
-          })
-          .emulateTransitionEnd(transitionDuration)
+      const nextElementInterval = parseInt(nextElement.getAttribute('data-interval'), 10)
+      if (nextElementInterval) {
+        this._config.defaultInterval = this._config.defaultInterval || this._config.interval
+        this._config.interval = nextElementInterval
       } else {
-        $(activeElement).removeClass(ClassName.ACTIVE)
-        $(nextElement).addClass(ClassName.ACTIVE)
-
-        this._isSliding = false
-        $(this._element).trigger(slidEvent)
+        this._config.interval = this._config.defaultInterval || this._config.interval
       }
 
-      if (isCycling) {
-        this.cycle()
-      }
-    }
+      const transitionDuration = Util.getTransitionDurationFromElement(activeElement)
 
-    // Static
+      $(activeElement)
+        .one(Util.TRANSITION_END, () => {
+          $(nextElement)
+            .removeClass(`${directionalClassName} ${orderClassName}`)
+            .addClass(ClassName.ACTIVE)
 
-    static _jQueryInterface(config) {
-      return this.each(function () {
-        let data = $(this).data(DATA_KEY)
-        let _config = {
-          ...Default,
-          ...$(this).data()
-        }
+          $(activeElement).removeClass(`${ClassName.ACTIVE} ${orderClassName} ${directionalClassName}`)
 
-        if (typeof config === 'object') {
-          _config = {
-            ..._config,
-            ...config
-          }
-        }
+          this._isSliding = false
 
-        const action = typeof config === 'string' ? config : _config.slide
+          setTimeout(() => $(this._element).trigger(slidEvent), 0)
+        })
+        .emulateTransitionEnd(transitionDuration)
+    } else {
+      $(activeElement).removeClass(ClassName.ACTIVE)
+      $(nextElement).addClass(ClassName.ACTIVE)
 
-        if (!data) {
-          data = new Carousel(this, _config)
-          $(this).data(DATA_KEY, data)
-        }
+      this._isSliding = false
+      $(this._element).trigger(slidEvent)
+    }
 
-        if (typeof config === 'number') {
-          data.to(config)
-        } else if (typeof action === 'string') {
-          if (typeof data[action] === 'undefined') {
-            throw new TypeError(`No method named "${action}"`)
-          }
-          data[action]()
-        } else if (_config.interval) {
-          data.pause()
-          data.cycle()
-        }
-      })
+    if (isCycling) {
+      this.cycle()
     }
+  }
 
-    static _dataApiClickHandler(event) {
-      const selector = Util.getSelectorFromElement(this)
+  // Static
 
-      if (!selector) {
-        return
+  static _jQueryInterface(config) {
+    return this.each(function () {
+      let data = $(this).data(DATA_KEY)
+      let _config = {
+        ...Default,
+        ...$(this).data()
       }
 
-      const target = $(selector)[0]
-
-      if (!target || !$(target).hasClass(ClassName.CAROUSEL)) {
-        return
+      if (typeof config === 'object') {
+        _config = {
+          ..._config,
+          ...config
+        }
       }
 
-      const config = {
-        ...$(target).data(),
-        ...$(this).data()
+      const action = typeof config === 'string' ? config : _config.slide
+
+      if (!data) {
+        data = new Carousel(this, _config)
+        $(this).data(DATA_KEY, data)
       }
-      const slideIndex = this.getAttribute('data-slide-to')
 
-      if (slideIndex) {
-        config.interval = false
+      if (typeof config === 'number') {
+        data.to(config)
+      } else if (typeof action === 'string') {
+        if (typeof data[action] === 'undefined') {
+          throw new TypeError(`No method named "${action}"`)
+        }
+        data[action]()
+      } else if (_config.interval && _config.ride) {
+        data.pause()
+        data.cycle()
       }
+    })
+  }
 
-      Carousel._jQueryInterface.call($(target), config)
+  static _dataApiClickHandler(event) {
+    const selector = Util.getSelectorFromElement(this)
 
-      if (slideIndex) {
-        $(target).data(DATA_KEY).to(slideIndex)
-      }
+    if (!selector) {
+      return
+    }
+
+    const target = $(selector)[0]
 
-      event.preventDefault()
+    if (!target || !$(target).hasClass(ClassName.CAROUSEL)) {
+      return
     }
+
+    const config = {
+      ...$(target).data(),
+      ...$(this).data()
+    }
+    const slideIndex = this.getAttribute('data-slide-to')
+
+    if (slideIndex) {
+      config.interval = false
+    }
+
+    Carousel._jQueryInterface.call($(target), config)
+
+    if (slideIndex) {
+      $(target).data(DATA_KEY).to(slideIndex)
+    }
+
+    event.preventDefault()
   }
+}
 
-  /**
-   * ------------------------------------------------------------------------
-   * Data Api implementation
-   * ------------------------------------------------------------------------
-   */
-
-  $(document)
-    .on(Event.CLICK_DATA_API, Selector.DATA_SLIDE, Carousel._dataApiClickHandler)
-
-  $(window).on(Event.LOAD_DATA_API, () => {
-    const carousels = [].slice.call(document.querySelectorAll(Selector.DATA_RIDE))
-    for (let i = 0, len = carousels.length; i < len; i++) {
-      const $carousel = $(carousels[i])
-      Carousel._jQueryInterface.call($carousel, $carousel.data())
-    }
-  })
-
-  /**
-   * ------------------------------------------------------------------------
-   * jQuery
-   * ------------------------------------------------------------------------
-   */
-
-  $.fn[NAME] = Carousel._jQueryInterface
-  $.fn[NAME].Constructor = Carousel
-  $.fn[NAME].noConflict = function () {
-    $.fn[NAME] = JQUERY_NO_CONFLICT
-    return Carousel._jQueryInterface
+/**
+ * ------------------------------------------------------------------------
+ * Data Api implementation
+ * ------------------------------------------------------------------------
+ */
+
+$(document)
+  .on(Event.CLICK_DATA_API, Selector.DATA_SLIDE, Carousel._dataApiClickHandler)
+
+$(window).on(Event.LOAD_DATA_API, () => {
+  const carousels = [].slice.call(document.querySelectorAll(Selector.DATA_RIDE))
+  for (let i = 0, len = carousels.length; i < len; i++) {
+    const $carousel = $(carousels[i])
+    Carousel._jQueryInterface.call($carousel, $carousel.data())
   }
+})
+
+/**
+ * ------------------------------------------------------------------------
+ * jQuery
+ * ------------------------------------------------------------------------
+ */
 
-  return Carousel
-})($)
+$.fn[NAME] = Carousel._jQueryInterface
+$.fn[NAME].Constructor = Carousel
+$.fn[NAME].noConflict = () => {
+  $.fn[NAME] = JQUERY_NO_CONFLICT
+  return Carousel._jQueryInterface
+}
 
 export default Carousel
diff --git a/vendor/twbs/bootstrap/js/src/collapse.js b/vendor/twbs/bootstrap/js/src/collapse.js
index 9277420a2..10df450d0 100644
--- a/vendor/twbs/bootstrap/js/src/collapse.js
+++ b/vendor/twbs/bootstrap/js/src/collapse.js
@@ -1,398 +1,402 @@
-import $ from 'jquery'
-import Util from './util'
-
 /**
  * --------------------------------------------------------------------------
- * Bootstrap (v4.1.3): collapse.js
+ * Bootstrap (v4.3.1): collapse.js
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  * --------------------------------------------------------------------------
  */
 
-const Collapse = (($) => {
-  /**
-   * ------------------------------------------------------------------------
-   * Constants
-   * ------------------------------------------------------------------------
-   */
-
-  const NAME                = 'collapse'
-  const VERSION             = '4.1.3'
-  const DATA_KEY            = 'bs.collapse'
-  const EVENT_KEY           = `.${DATA_KEY}`
-  const DATA_API_KEY        = '.data-api'
-  const JQUERY_NO_CONFLICT  = $.fn[NAME]
-
-  const Default = {
-    toggle : true,
-    parent : ''
-  }
-
-  const DefaultType = {
-    toggle : 'boolean',
-    parent : '(string|element)'
-  }
-
-  const Event = {
-    SHOW           : `show${EVENT_KEY}`,
-    SHOWN          : `shown${EVENT_KEY}`,
-    HIDE           : `hide${EVENT_KEY}`,
-    HIDDEN         : `hidden${EVENT_KEY}`,
-    CLICK_DATA_API : `click${EVENT_KEY}${DATA_API_KEY}`
-  }
+import $ from 'jquery'
+import Util from './util'
 
-  const ClassName = {
-    SHOW       : 'show',
-    COLLAPSE   : 'collapse',
-    COLLAPSING : 'collapsing',
-    COLLAPSED  : 'collapsed'
-  }
+/**
+ * ------------------------------------------------------------------------
+ * Constants
+ * ------------------------------------------------------------------------
+ */
 
-  const Dimension = {
-    WIDTH  : 'width',
-    HEIGHT : 'height'
-  }
+const NAME                = 'collapse'
+const VERSION             = '4.3.1'
+const DATA_KEY            = 'bs.collapse'
+const EVENT_KEY           = `.${DATA_KEY}`
+const DATA_API_KEY        = '.data-api'
+const JQUERY_NO_CONFLICT  = $.fn[NAME]
+
+const Default = {
+  toggle : true,
+  parent : ''
+}
+
+const DefaultType = {
+  toggle : 'boolean',
+  parent : '(string|element)'
+}
+
+const Event = {
+  SHOW           : `show${EVENT_KEY}`,
+  SHOWN          : `shown${EVENT_KEY}`,
+  HIDE           : `hide${EVENT_KEY}`,
+  HIDDEN         : `hidden${EVENT_KEY}`,
+  CLICK_DATA_API : `click${EVENT_KEY}${DATA_API_KEY}`
+}
+
+const ClassName = {
+  SHOW       : 'show',
+  COLLAPSE   : 'collapse',
+  COLLAPSING : 'collapsing',
+  COLLAPSED  : 'collapsed'
+}
+
+const Dimension = {
+  WIDTH  : 'width',
+  HEIGHT : 'height'
+}
+
+const Selector = {
+  ACTIVES     : '.show, .collapsing',
+  DATA_TOGGLE : '[data-toggle="collapse"]'
+}
 
-  const Selector = {
-    ACTIVES     : '.show, .collapsing',
-    DATA_TOGGLE : '[data-toggle="collapse"]'
-  }
+/**
+ * ------------------------------------------------------------------------
+ * Class Definition
+ * ------------------------------------------------------------------------
+ */
 
-  /**
-   * ------------------------------------------------------------------------
-   * Class Definition
-   * ------------------------------------------------------------------------
-   */
-
-  class Collapse {
-    constructor(element, config) {
-      this._isTransitioning = false
-      this._element         = element
-      this._config          = this._getConfig(config)
-      this._triggerArray    = $.makeArray(document.querySelectorAll(
-        `[data-toggle="collapse"][href="#${element.id}"],` +
-        `[data-toggle="collapse"][data-target="#${element.id}"]`
-      ))
-      const toggleList = [].slice.call(document.querySelectorAll(Selector.DATA_TOGGLE))
-      for (let i = 0, len = toggleList.length; i < len; i++) {
-        const elem = toggleList[i]
-        const selector = Util.getSelectorFromElement(elem)
-        const filterElement = [].slice.call(document.querySelectorAll(selector))
-          .filter((foundElem) => foundElem === element)
-
-        if (selector !== null && filterElement.length > 0) {
-          this._selector = selector
-          this._triggerArray.push(elem)
-        }
+class Collapse {
+  constructor(element, config) {
+    this._isTransitioning = false
+    this._element         = element
+    this._config          = this._getConfig(config)
+    this._triggerArray    = [].slice.call(document.querySelectorAll(
+      `[data-toggle="collapse"][href="#${element.id}"],` +
+      `[data-toggle="collapse"][data-target="#${element.id}"]`
+    ))
+
+    const toggleList = [].slice.call(document.querySelectorAll(Selector.DATA_TOGGLE))
+    for (let i = 0, len = toggleList.length; i < len; i++) {
+      const elem = toggleList[i]
+      const selector = Util.getSelectorFromElement(elem)
+      const filterElement = [].slice.call(document.querySelectorAll(selector))
+        .filter((foundElem) => foundElem === element)
+
+      if (selector !== null && filterElement.length > 0) {
+        this._selector = selector
+        this._triggerArray.push(elem)
       }
+    }
 
-      this._parent = this._config.parent ? this._getParent() : null
+    this._parent = this._config.parent ? this._getParent() : null
 
-      if (!this._config.parent) {
-        this._addAriaAndCollapsedClass(this._element, this._triggerArray)
-      }
+    if (!this._config.parent) {
+      this._addAriaAndCollapsedClass(this._element, this._triggerArray)
+    }
 
-      if (this._config.toggle) {
-        this.toggle()
-      }
+    if (this._config.toggle) {
+      this.toggle()
     }
+  }
 
-    // Getters
+  // Getters
 
-    static get VERSION() {
-      return VERSION
-    }
+  static get VERSION() {
+    return VERSION
+  }
 
-    static get Default() {
-      return Default
-    }
+  static get Default() {
+    return Default
+  }
 
-    // Public
+  // Public
 
-    toggle() {
-      if ($(this._element).hasClass(ClassName.SHOW)) {
-        this.hide()
-      } else {
-        this.show()
-      }
+  toggle() {
+    if ($(this._element).hasClass(ClassName.SHOW)) {
+      this.hide()
+    } else {
+      this.show()
     }
+  }
 
-    show() {
-      if (this._isTransitioning ||
-        $(this._element).hasClass(ClassName.SHOW)) {
-        return
-      }
+  show() {
+    if (this._isTransitioning ||
+      $(this._element).hasClass(ClassName.SHOW)) {
+      return
+    }
 
-      let actives
-      let activesData
+    let actives
+    let activesData
 
-      if (this._parent) {
-        actives = [].slice.call(this._parent.querySelectorAll(Selector.ACTIVES))
-          .filter((elem) => elem.getAttribute('data-parent') === this._config.parent)
+    if (this._parent) {
+      actives = [].slice.call(this._parent.querySelectorAll(Selector.ACTIVES))
+        .filter((elem) => {
+          if (typeof this._config.parent === 'string') {
+            return elem.getAttribute('data-parent') === this._config.parent
+          }
 
-        if (actives.length === 0) {
-          actives = null
-        }
-      }
+          return elem.classList.contains(ClassName.COLLAPSE)
+        })
 
-      if (actives) {
-        activesData = $(actives).not(this._selector).data(DATA_KEY)
-        if (activesData && activesData._isTransitioning) {
-          return
-        }
+      if (actives.length === 0) {
+        actives = null
       }
+    }
 
-      const startEvent = $.Event(Event.SHOW)
-      $(this._element).trigger(startEvent)
-      if (startEvent.isDefaultPrevented()) {
+    if (actives) {
+      activesData = $(actives).not(this._selector).data(DATA_KEY)
+      if (activesData && activesData._isTransitioning) {
         return
       }
+    }
 
-      if (actives) {
-        Collapse._jQueryInterface.call($(actives).not(this._selector), 'hide')
-        if (!activesData) {
-          $(actives).data(DATA_KEY, null)
-        }
+    const startEvent = $.Event(Event.SHOW)
+    $(this._element).trigger(startEvent)
+    if (startEvent.isDefaultPrevented()) {
+      return
+    }
+
+    if (actives) {
+      Collapse._jQueryInterface.call($(actives).not(this._selector), 'hide')
+      if (!activesData) {
+        $(actives).data(DATA_KEY, null)
       }
+    }
 
-      const dimension = this._getDimension()
+    const dimension = this._getDimension()
 
-      $(this._element)
-        .removeClass(ClassName.COLLAPSE)
-        .addClass(ClassName.COLLAPSING)
+    $(this._element)
+      .removeClass(ClassName.COLLAPSE)
+      .addClass(ClassName.COLLAPSING)
 
-      this._element.style[dimension] = 0
+    this._element.style[dimension] = 0
 
-      if (this._triggerArray.length) {
-        $(this._triggerArray)
-          .removeClass(ClassName.COLLAPSED)
-          .attr('aria-expanded', true)
-      }
+    if (this._triggerArray.length) {
+      $(this._triggerArray)
+        .removeClass(ClassName.COLLAPSED)
+        .attr('aria-expanded', true)
+    }
 
-      this.setTransitioning(true)
+    this.setTransitioning(true)
 
-      const complete = () => {
-        $(this._element)
-          .removeClass(ClassName.COLLAPSING)
-          .addClass(ClassName.COLLAPSE)
-          .addClass(ClassName.SHOW)
+    const complete = () => {
+      $(this._element)
+        .removeClass(ClassName.COLLAPSING)
+        .addClass(ClassName.COLLAPSE)
+        .addClass(ClassName.SHOW)
 
-        this._element.style[dimension] = ''
+      this._element.style[dimension] = ''
 
-        this.setTransitioning(false)
+      this.setTransitioning(false)
 
-        $(this._element).trigger(Event.SHOWN)
-      }
+      $(this._element).trigger(Event.SHOWN)
+    }
 
-      const capitalizedDimension = dimension[0].toUpperCase() + dimension.slice(1)
-      const scrollSize = `scroll${capitalizedDimension}`
-      const transitionDuration = Util.getTransitionDurationFromElement(this._element)
+    const capitalizedDimension = dimension[0].toUpperCase() + dimension.slice(1)
+    const scrollSize = `scroll${capitalizedDimension}`
+    const transitionDuration = Util.getTransitionDurationFromElement(this._element)
 
-      $(this._element)
-        .one(Util.TRANSITION_END, complete)
-        .emulateTransitionEnd(transitionDuration)
+    $(this._element)
+      .one(Util.TRANSITION_END, complete)
+      .emulateTransitionEnd(transitionDuration)
+
+    this._element.style[dimension] = `${this._element[scrollSize]}px`
+  }
 
-      this._element.style[dimension] = `${this._element[scrollSize]}px`
+  hide() {
+    if (this._isTransitioning ||
+      !$(this._element).hasClass(ClassName.SHOW)) {
+      return
     }
 
-    hide() {
-      if (this._isTransitioning ||
-        !$(this._element).hasClass(ClassName.SHOW)) {
-        return
-      }
+    const startEvent = $.Event(Event.HIDE)
+    $(this._element).trigger(startEvent)
+    if (startEvent.isDefaultPrevented()) {
+      return
+    }
 
-      const startEvent = $.Event(Event.HIDE)
-      $(this._element).trigger(startEvent)
-      if (startEvent.isDefaultPrevented()) {
-        return
-      }
+    const dimension = this._getDimension()
 
-      const dimension = this._getDimension()
+    this._element.style[dimension] = `${this._element.getBoundingClientRect()[dimension]}px`
 
-      this._element.style[dimension] = `${this._element.getBoundingClientRect()[dimension]}px`
+    Util.reflow(this._element)
 
-      Util.reflow(this._element)
+    $(this._element)
+      .addClass(ClassName.COLLAPSING)
+      .removeClass(ClassName.COLLAPSE)
+      .removeClass(ClassName.SHOW)
 
-      $(this._element)
-        .addClass(ClassName.COLLAPSING)
-        .removeClass(ClassName.COLLAPSE)
-        .removeClass(ClassName.SHOW)
-
-      const triggerArrayLength = this._triggerArray.length
-      if (triggerArrayLength > 0) {
-        for (let i = 0; i < triggerArrayLength; i++) {
-          const trigger = this._triggerArray[i]
-          const selector = Util.getSelectorFromElement(trigger)
-          if (selector !== null) {
-            const $elem = $([].slice.call(document.querySelectorAll(selector)))
-            if (!$elem.hasClass(ClassName.SHOW)) {
-              $(trigger).addClass(ClassName.COLLAPSED)
-                .attr('aria-expanded', false)
-            }
+    const triggerArrayLength = this._triggerArray.length
+    if (triggerArrayLength > 0) {
+      for (let i = 0; i < triggerArrayLength; i++) {
+        const trigger = this._triggerArray[i]
+        const selector = Util.getSelectorFromElement(trigger)
+
+        if (selector !== null) {
+          const $elem = $([].slice.call(document.querySelectorAll(selector)))
+          if (!$elem.hasClass(ClassName.SHOW)) {
+            $(trigger).addClass(ClassName.COLLAPSED)
+              .attr('aria-expanded', false)
           }
         }
       }
+    }
 
-      this.setTransitioning(true)
-
-      const complete = () => {
-        this.setTransitioning(false)
-        $(this._element)
-          .removeClass(ClassName.COLLAPSING)
-          .addClass(ClassName.COLLAPSE)
-          .trigger(Event.HIDDEN)
-      }
-
-      this._element.style[dimension] = ''
-      const transitionDuration = Util.getTransitionDurationFromElement(this._element)
+    this.setTransitioning(true)
 
+    const complete = () => {
+      this.setTransitioning(false)
       $(this._element)
-        .one(Util.TRANSITION_END, complete)
-        .emulateTransitionEnd(transitionDuration)
+        .removeClass(ClassName.COLLAPSING)
+        .addClass(ClassName.COLLAPSE)
+        .trigger(Event.HIDDEN)
     }
 
-    setTransitioning(isTransitioning) {
-      this._isTransitioning = isTransitioning
-    }
+    this._element.style[dimension] = ''
+    const transitionDuration = Util.getTransitionDurationFromElement(this._element)
 
-    dispose() {
-      $.removeData(this._element, DATA_KEY)
+    $(this._element)
+      .one(Util.TRANSITION_END, complete)
+      .emulateTransitionEnd(transitionDuration)
+  }
 
-      this._config          = null
-      this._parent          = null
-      this._element         = null
-      this._triggerArray    = null
-      this._isTransitioning = null
-    }
+  setTransitioning(isTransitioning) {
+    this._isTransitioning = isTransitioning
+  }
 
-    // Private
+  dispose() {
+    $.removeData(this._element, DATA_KEY)
 
-    _getConfig(config) {
-      config = {
-        ...Default,
-        ...config
-      }
-      config.toggle = Boolean(config.toggle) // Coerce string values
-      Util.typeCheckConfig(NAME, config, DefaultType)
-      return config
-    }
+    this._config          = null
+    this._parent          = null
+    this._element         = null
+    this._triggerArray    = null
+    this._isTransitioning = null
+  }
 
-    _getDimension() {
-      const hasWidth = $(this._element).hasClass(Dimension.WIDTH)
-      return hasWidth ? Dimension.WIDTH : Dimension.HEIGHT
+  // Private
+
+  _getConfig(config) {
+    config = {
+      ...Default,
+      ...config
     }
+    config.toggle = Boolean(config.toggle) // Coerce string values
+    Util.typeCheckConfig(NAME, config, DefaultType)
+    return config
+  }
 
-    _getParent() {
-      let parent = null
-      if (Util.isElement(this._config.parent)) {
-        parent = this._config.parent
+  _getDimension() {
+    const hasWidth = $(this._element).hasClass(Dimension.WIDTH)
+    return hasWidth ? Dimension.WIDTH : Dimension.HEIGHT
+  }
 
-        // It's a jQuery object
-        if (typeof this._config.parent.jquery !== 'undefined') {
-          parent = this._config.parent[0]
-        }
-      } else {
-        parent = document.querySelector(this._config.parent)
+  _getParent() {
+    let parent
+
+    if (Util.isElement(this._config.parent)) {
+      parent = this._config.parent
+
+      // It's a jQuery object
+      if (typeof this._config.parent.jquery !== 'undefined') {
+        parent = this._config.parent[0]
       }
+    } else {
+      parent = document.querySelector(this._config.parent)
+    }
 
-      const selector =
-        `[data-toggle="collapse"][data-parent="${this._config.parent}"]`
+    const selector =
+      `[data-toggle="collapse"][data-parent="${this._config.parent}"]`
 
-      const children = [].slice.call(parent.querySelectorAll(selector))
-      $(children).each((i, element) => {
-        this._addAriaAndCollapsedClass(
-          Collapse._getTargetFromElement(element),
-          [element]
-        )
-      })
+    const children = [].slice.call(parent.querySelectorAll(selector))
+    $(children).each((i, element) => {
+      this._addAriaAndCollapsedClass(
+        Collapse._getTargetFromElement(element),
+        [element]
+      )
+    })
 
-      return parent
-    }
+    return parent
+  }
 
-    _addAriaAndCollapsedClass(element, triggerArray) {
-      if (element) {
-        const isOpen = $(element).hasClass(ClassName.SHOW)
+  _addAriaAndCollapsedClass(element, triggerArray) {
+    const isOpen = $(element).hasClass(ClassName.SHOW)
 
-        if (triggerArray.length) {
-          $(triggerArray)
-            .toggleClass(ClassName.COLLAPSED, !isOpen)
-            .attr('aria-expanded', isOpen)
-        }
-      }
+    if (triggerArray.length) {
+      $(triggerArray)
+        .toggleClass(ClassName.COLLAPSED, !isOpen)
+        .attr('aria-expanded', isOpen)
     }
+  }
 
-    // Static
+  // Static
 
-    static _getTargetFromElement(element) {
-      const selector = Util.getSelectorFromElement(element)
-      return selector ? document.querySelector(selector) : null
-    }
+  static _getTargetFromElement(element) {
+    const selector = Util.getSelectorFromElement(element)
+    return selector ? document.querySelector(selector) : null
+  }
 
-    static _jQueryInterface(config) {
-      return this.each(function () {
-        const $this   = $(this)
-        let data      = $this.data(DATA_KEY)
-        const _config = {
-          ...Default,
-          ...$this.data(),
-          ...typeof config === 'object' && config ? config : {}
-        }
+  static _jQueryInterface(config) {
+    return this.each(function () {
+      const $this   = $(this)
+      let data      = $this.data(DATA_KEY)
+      const _config = {
+        ...Default,
+        ...$this.data(),
+        ...typeof config === 'object' && config ? config : {}
+      }
 
-        if (!data && _config.toggle && /show|hide/.test(config)) {
-          _config.toggle = false
-        }
+      if (!data && _config.toggle && /show|hide/.test(config)) {
+        _config.toggle = false
+      }
 
-        if (!data) {
-          data = new Collapse(this, _config)
-          $this.data(DATA_KEY, data)
-        }
+      if (!data) {
+        data = new Collapse(this, _config)
+        $this.data(DATA_KEY, data)
+      }
 
-        if (typeof config === 'string') {
-          if (typeof data[config] === 'undefined') {
-            throw new TypeError(`No method named "${config}"`)
-          }
-          data[config]()
+      if (typeof config === 'string') {
+        if (typeof data[config] === 'undefined') {
+          throw new TypeError(`No method named "${config}"`)
         }
-      })
-    }
+        data[config]()
+      }
+    })
   }
+}
 
-  /**
-   * ------------------------------------------------------------------------
-   * Data Api implementation
-   * ------------------------------------------------------------------------
-   */
+/**
+ * ------------------------------------------------------------------------
+ * Data Api implementation
+ * ------------------------------------------------------------------------
+ */
 
-  $(document).on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE, function (event) {
-    // preventDefault only for <a> elements (which change the URL) not inside the collapsible element
-    if (event.currentTarget.tagName === 'A') {
-      event.preventDefault()
-    }
+$(document).on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE, function (event) {
+  // preventDefault only for <a> elements (which change the URL) not inside the collapsible element
+  if (event.currentTarget.tagName === 'A') {
+    event.preventDefault()
+  }
 
-    const $trigger = $(this)
-    const selector = Util.getSelectorFromElement(this)
-    const selectors = [].slice.call(document.querySelectorAll(selector))
-    $(selectors).each(function () {
-      const $target = $(this)
-      const data    = $target.data(DATA_KEY)
-      const config  = data ? 'toggle' : $trigger.data()
-      Collapse._jQueryInterface.call($target, config)
-    })
+  const $trigger = $(this)
+  const selector = Util.getSelectorFromElement(this)
+  const selectors = [].slice.call(document.querySelectorAll(selector))
+
+  $(selectors).each(function () {
+    const $target = $(this)
+    const data    = $target.data(DATA_KEY)
+    const config  = data ? 'toggle' : $trigger.data()
+    Collapse._jQueryInterface.call($target, config)
   })
+})
 
-  /**
-   * ------------------------------------------------------------------------
-   * jQuery
-   * ------------------------------------------------------------------------
-   */
-
-  $.fn[NAME] = Collapse._jQueryInterface
-  $.fn[NAME].Constructor = Collapse
-  $.fn[NAME].noConflict = function () {
-    $.fn[NAME] = JQUERY_NO_CONFLICT
-    return Collapse._jQueryInterface
-  }
+/**
+ * ------------------------------------------------------------------------
+ * jQuery
+ * ------------------------------------------------------------------------
+ */
 
-  return Collapse
-})($)
+$.fn[NAME] = Collapse._jQueryInterface
+$.fn[NAME].Constructor = Collapse
+$.fn[NAME].noConflict = () => {
+  $.fn[NAME] = JQUERY_NO_CONFLICT
+  return Collapse._jQueryInterface
+}
 
 export default Collapse
diff --git a/vendor/twbs/bootstrap/js/src/dropdown.js b/vendor/twbs/bootstrap/js/src/dropdown.js
index 072bce6e3..d336a46d9 100644
--- a/vendor/twbs/bootstrap/js/src/dropdown.js
+++ b/vendor/twbs/bootstrap/js/src/dropdown.js
@@ -1,494 +1,545 @@
+/**
+ * --------------------------------------------------------------------------
+ * Bootstrap (v4.3.1): dropdown.js
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * --------------------------------------------------------------------------
+ */
+
 import $ from 'jquery'
 import Popper from 'popper.js'
 import Util from './util'
 
 /**
- * --------------------------------------------------------------------------
- * Bootstrap (v4.1.3): dropdown.js
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
- * --------------------------------------------------------------------------
+ * ------------------------------------------------------------------------
+ * Constants
+ * ------------------------------------------------------------------------
  */
 
-const Dropdown = (($) => {
-  /**
-   * ------------------------------------------------------------------------
-   * Constants
-   * ------------------------------------------------------------------------
-   */
-
-  const NAME                     = 'dropdown'
-  const VERSION                  = '4.1.3'
-  const DATA_KEY                 = 'bs.dropdown'
-  const EVENT_KEY                = `.${DATA_KEY}`
-  const DATA_API_KEY             = '.data-api'
-  const JQUERY_NO_CONFLICT       = $.fn[NAME]
-  const ESCAPE_KEYCODE           = 27 // KeyboardEvent.which value for Escape (Esc) key
-  const SPACE_KEYCODE            = 32 // KeyboardEvent.which value for space key
-  const TAB_KEYCODE              = 9 // KeyboardEvent.which value for tab key
-  const ARROW_UP_KEYCODE         = 38 // KeyboardEvent.which value for up arrow key
-  const ARROW_DOWN_KEYCODE       = 40 // KeyboardEvent.which value for down arrow key
-  const RIGHT_MOUSE_BUTTON_WHICH = 3 // MouseEvent.which value for the right button (assuming a right-handed mouse)
-  const REGEXP_KEYDOWN           = new RegExp(`${ARROW_UP_KEYCODE}|${ARROW_DOWN_KEYCODE}|${ESCAPE_KEYCODE}`)
-
-  const Event = {
-    HIDE             : `hide${EVENT_KEY}`,
-    HIDDEN           : `hidden${EVENT_KEY}`,
-    SHOW             : `show${EVENT_KEY}`,
-    SHOWN            : `shown${EVENT_KEY}`,
-    CLICK            : `click${EVENT_KEY}`,
-    CLICK_DATA_API   : `click${EVENT_KEY}${DATA_API_KEY}`,
-    KEYDOWN_DATA_API : `keydown${EVENT_KEY}${DATA_API_KEY}`,
-    KEYUP_DATA_API   : `keyup${EVENT_KEY}${DATA_API_KEY}`
-  }
+const NAME                     = 'dropdown'
+const VERSION                  = '4.3.1'
+const DATA_KEY                 = 'bs.dropdown'
+const EVENT_KEY                = `.${DATA_KEY}`
+const DATA_API_KEY             = '.data-api'
+const JQUERY_NO_CONFLICT       = $.fn[NAME]
+const ESCAPE_KEYCODE           = 27 // KeyboardEvent.which value for Escape (Esc) key
+const SPACE_KEYCODE            = 32 // KeyboardEvent.which value for space key
+const TAB_KEYCODE              = 9 // KeyboardEvent.which value for tab key
+const ARROW_UP_KEYCODE         = 38 // KeyboardEvent.which value for up arrow key
+const ARROW_DOWN_KEYCODE       = 40 // KeyboardEvent.which value for down arrow key
+const RIGHT_MOUSE_BUTTON_WHICH = 3 // MouseEvent.which value for the right button (assuming a right-handed mouse)
+const REGEXP_KEYDOWN           = new RegExp(`${ARROW_UP_KEYCODE}|${ARROW_DOWN_KEYCODE}|${ESCAPE_KEYCODE}`)
+
+const Event = {
+  HIDE             : `hide${EVENT_KEY}`,
+  HIDDEN           : `hidden${EVENT_KEY}`,
+  SHOW             : `show${EVENT_KEY}`,
+  SHOWN            : `shown${EVENT_KEY}`,
+  CLICK            : `click${EVENT_KEY}`,
+  CLICK_DATA_API   : `click${EVENT_KEY}${DATA_API_KEY}`,
+  KEYDOWN_DATA_API : `keydown${EVENT_KEY}${DATA_API_KEY}`,
+  KEYUP_DATA_API   : `keyup${EVENT_KEY}${DATA_API_KEY}`
+}
+
+const ClassName = {
+  DISABLED        : 'disabled',
+  SHOW            : 'show',
+  DROPUP          : 'dropup',
+  DROPRIGHT       : 'dropright',
+  DROPLEFT        : 'dropleft',
+  MENURIGHT       : 'dropdown-menu-right',
+  MENULEFT        : 'dropdown-menu-left',
+  POSITION_STATIC : 'position-static'
+}
+
+const Selector = {
+  DATA_TOGGLE   : '[data-toggle="dropdown"]',
+  FORM_CHILD    : '.dropdown form',
+  MENU          : '.dropdown-menu',
+  NAVBAR_NAV    : '.navbar-nav',
+  VISIBLE_ITEMS : '.dropdown-menu .dropdown-item:not(.disabled):not(:disabled)'
+}
+
+const AttachmentMap = {
+  TOP       : 'top-start',
+  TOPEND    : 'top-end',
+  BOTTOM    : 'bottom-start',
+  BOTTOMEND : 'bottom-end',
+  RIGHT     : 'right-start',
+  RIGHTEND  : 'right-end',
+  LEFT      : 'left-start',
+  LEFTEND   : 'left-end'
+}
+
+const Default = {
+  offset    : 0,
+  flip      : true,
+  boundary  : 'scrollParent',
+  reference : 'toggle',
+  display   : 'dynamic'
+}
+
+const DefaultType = {
+  offset    : '(number|string|function)',
+  flip      : 'boolean',
+  boundary  : '(string|element)',
+  reference : '(string|element)',
+  display   : 'string'
+}
 
-  const ClassName = {
-    DISABLED  : 'disabled',
-    SHOW      : 'show',
-    DROPUP    : 'dropup',
-    DROPRIGHT : 'dropright',
-    DROPLEFT  : 'dropleft',
-    MENURIGHT : 'dropdown-menu-right',
-    MENULEFT  : 'dropdown-menu-left',
-    POSITION_STATIC : 'position-static'
-  }
+/**
+ * ------------------------------------------------------------------------
+ * Class Definition
+ * ------------------------------------------------------------------------
+ */
+
+class Dropdown {
+  constructor(element, config) {
+    this._element  = element
+    this._popper   = null
+    this._config   = this._getConfig(config)
+    this._menu     = this._getMenuElement()
+    this._inNavbar = this._detectNavbar()
 
-  const Selector = {
-    DATA_TOGGLE   : '[data-toggle="dropdown"]',
-    FORM_CHILD    : '.dropdown form',
-    MENU          : '.dropdown-menu',
-    NAVBAR_NAV    : '.navbar-nav',
-    VISIBLE_ITEMS : '.dropdown-menu .dropdown-item:not(.disabled):not(:disabled)'
+    this._addEventListeners()
   }
 
-  const AttachmentMap = {
-    TOP       : 'top-start',
-    TOPEND    : 'top-end',
-    BOTTOM    : 'bottom-start',
-    BOTTOMEND : 'bottom-end',
-    RIGHT     : 'right-start',
-    RIGHTEND  : 'right-end',
-    LEFT      : 'left-start',
-    LEFTEND   : 'left-end'
+  // Getters
+
+  static get VERSION() {
+    return VERSION
   }
 
-  const Default = {
-    offset      : 0,
-    flip        : true,
-    boundary    : 'scrollParent',
-    reference   : 'toggle',
-    display     : 'dynamic'
+  static get Default() {
+    return Default
   }
 
-  const DefaultType = {
-    offset      : '(number|string|function)',
-    flip        : 'boolean',
-    boundary    : '(string|element)',
-    reference   : '(string|element)',
-    display     : 'string'
+  static get DefaultType() {
+    return DefaultType
   }
 
-  /**
-   * ------------------------------------------------------------------------
-   * Class Definition
-   * ------------------------------------------------------------------------
-   */
-
-  class Dropdown {
-    constructor(element, config) {
-      this._element  = element
-      this._popper   = null
-      this._config   = this._getConfig(config)
-      this._menu     = this._getMenuElement()
-      this._inNavbar = this._detectNavbar()
-
-      this._addEventListeners()
+  // Public
+
+  toggle() {
+    if (this._element.disabled || $(this._element).hasClass(ClassName.DISABLED)) {
+      return
     }
 
-    // Getters
+    const parent   = Dropdown._getParentFromElement(this._element)
+    const isActive = $(this._menu).hasClass(ClassName.SHOW)
 
-    static get VERSION() {
-      return VERSION
-    }
+    Dropdown._clearMenus()
 
-    static get Default() {
-      return Default
+    if (isActive) {
+      return
     }
 
-    static get DefaultType() {
-      return DefaultType
+    const relatedTarget = {
+      relatedTarget: this._element
     }
+    const showEvent = $.Event(Event.SHOW, relatedTarget)
+
+    $(parent).trigger(showEvent)
 
-    // Public
+    if (showEvent.isDefaultPrevented()) {
+      return
+    }
 
-    toggle() {
-      if (this._element.disabled || $(this._element).hasClass(ClassName.DISABLED)) {
-        return
+    // Disable totally Popper.js for Dropdown in Navbar
+    if (!this._inNavbar) {
+      /**
+       * Check for Popper dependency
+       * Popper - https://popper.js.org
+       */
+      if (typeof Popper === 'undefined') {
+        throw new TypeError('Bootstrap\'s dropdowns require Popper.js (https://popper.js.org/)')
       }
 
-      const parent   = Dropdown._getParentFromElement(this._element)
-      const isActive = $(this._menu).hasClass(ClassName.SHOW)
+      let referenceElement = this._element
 
-      Dropdown._clearMenus()
+      if (this._config.reference === 'parent') {
+        referenceElement = parent
+      } else if (Util.isElement(this._config.reference)) {
+        referenceElement = this._config.reference
 
-      if (isActive) {
-        return
+        // Check if it's jQuery element
+        if (typeof this._config.reference.jquery !== 'undefined') {
+          referenceElement = this._config.reference[0]
+        }
       }
 
-      const relatedTarget = {
-        relatedTarget: this._element
+      // If boundary is not `scrollParent`, then set position to `static`
+      // to allow the menu to "escape" the scroll parent's boundaries
+      // https://github.com/twbs/bootstrap/issues/24251
+      if (this._config.boundary !== 'scrollParent') {
+        $(parent).addClass(ClassName.POSITION_STATIC)
       }
-      const showEvent = $.Event(Event.SHOW, relatedTarget)
-
-      $(parent).trigger(showEvent)
+      this._popper = new Popper(referenceElement, this._menu, this._getPopperConfig())
+    }
 
-      if (showEvent.isDefaultPrevented()) {
-        return
-      }
+    // If this is a touch-enabled device we add extra
+    // empty mouseover listeners to the body's immediate children;
+    // only needed because of broken event delegation on iOS
+    // https://www.quirksmode.org/blog/archives/2014/02/mouse_event_bub.html
+    if ('ontouchstart' in document.documentElement &&
+        $(parent).closest(Selector.NAVBAR_NAV).length === 0) {
+      $(document.body).children().on('mouseover', null, $.noop)
+    }
 
-      // Disable totally Popper.js for Dropdown in Navbar
-      if (!this._inNavbar) {
-        /**
-         * Check for Popper dependency
-         * Popper - https://popper.js.org
-         */
-        if (typeof Popper === 'undefined') {
-          throw new TypeError('Bootstrap dropdown require Popper.js (https://popper.js.org)')
-        }
+    this._element.focus()
+    this._element.setAttribute('aria-expanded', true)
 
-        let referenceElement = this._element
+    $(this._menu).toggleClass(ClassName.SHOW)
+    $(parent)
+      .toggleClass(ClassName.SHOW)
+      .trigger($.Event(Event.SHOWN, relatedTarget))
+  }
 
-        if (this._config.reference === 'parent') {
-          referenceElement = parent
-        } else if (Util.isElement(this._config.reference)) {
-          referenceElement = this._config.reference
+  show() {
+    if (this._element.disabled || $(this._element).hasClass(ClassName.DISABLED) || $(this._menu).hasClass(ClassName.SHOW)) {
+      return
+    }
 
-          // Check if it's jQuery element
-          if (typeof this._config.reference.jquery !== 'undefined') {
-            referenceElement = this._config.reference[0]
-          }
-        }
+    const relatedTarget = {
+      relatedTarget: this._element
+    }
+    const showEvent = $.Event(Event.SHOW, relatedTarget)
+    const parent = Dropdown._getParentFromElement(this._element)
 
-        // If boundary is not `scrollParent`, then set position to `static`
-        // to allow the menu to "escape" the scroll parent's boundaries
-        // https://github.com/twbs/bootstrap/issues/24251
-        if (this._config.boundary !== 'scrollParent') {
-          $(parent).addClass(ClassName.POSITION_STATIC)
-        }
-        this._popper = new Popper(referenceElement, this._menu, this._getPopperConfig())
-      }
+    $(parent).trigger(showEvent)
 
-      // If this is a touch-enabled device we add extra
-      // empty mouseover listeners to the body's immediate children;
-      // only needed because of broken event delegation on iOS
-      // https://www.quirksmode.org/blog/archives/2014/02/mouse_event_bub.html
-      if ('ontouchstart' in document.documentElement &&
-         $(parent).closest(Selector.NAVBAR_NAV).length === 0) {
-        $(document.body).children().on('mouseover', null, $.noop)
-      }
+    if (showEvent.isDefaultPrevented()) {
+      return
+    }
 
-      this._element.focus()
-      this._element.setAttribute('aria-expanded', true)
+    $(this._menu).toggleClass(ClassName.SHOW)
+    $(parent)
+      .toggleClass(ClassName.SHOW)
+      .trigger($.Event(Event.SHOWN, relatedTarget))
+  }
 
-      $(this._menu).toggleClass(ClassName.SHOW)
-      $(parent)
-        .toggleClass(ClassName.SHOW)
-        .trigger($.Event(Event.SHOWN, relatedTarget))
+  hide() {
+    if (this._element.disabled || $(this._element).hasClass(ClassName.DISABLED) || !$(this._menu).hasClass(ClassName.SHOW)) {
+      return
     }
 
-    dispose() {
-      $.removeData(this._element, DATA_KEY)
-      $(this._element).off(EVENT_KEY)
-      this._element = null
-      this._menu = null
-      if (this._popper !== null) {
-        this._popper.destroy()
-        this._popper = null
-      }
+    const relatedTarget = {
+      relatedTarget: this._element
     }
+    const hideEvent = $.Event(Event.HIDE, relatedTarget)
+    const parent = Dropdown._getParentFromElement(this._element)
 
-    update() {
-      this._inNavbar = this._detectNavbar()
-      if (this._popper !== null) {
-        this._popper.scheduleUpdate()
-      }
+    $(parent).trigger(hideEvent)
+
+    if (hideEvent.isDefaultPrevented()) {
+      return
     }
 
-    // Private
+    $(this._menu).toggleClass(ClassName.SHOW)
+    $(parent)
+      .toggleClass(ClassName.SHOW)
+      .trigger($.Event(Event.HIDDEN, relatedTarget))
+  }
 
-    _addEventListeners() {
-      $(this._element).on(Event.CLICK, (event) => {
-        event.preventDefault()
-        event.stopPropagation()
-        this.toggle()
-      })
+  dispose() {
+    $.removeData(this._element, DATA_KEY)
+    $(this._element).off(EVENT_KEY)
+    this._element = null
+    this._menu = null
+    if (this._popper !== null) {
+      this._popper.destroy()
+      this._popper = null
     }
+  }
 
-    _getConfig(config) {
-      config = {
-        ...this.constructor.Default,
-        ...$(this._element).data(),
-        ...config
-      }
+  update() {
+    this._inNavbar = this._detectNavbar()
+    if (this._popper !== null) {
+      this._popper.scheduleUpdate()
+    }
+  }
 
-      Util.typeCheckConfig(
-        NAME,
-        config,
-        this.constructor.DefaultType
-      )
+  // Private
 
-      return config
+  _addEventListeners() {
+    $(this._element).on(Event.CLICK, (event) => {
+      event.preventDefault()
+      event.stopPropagation()
+      this.toggle()
+    })
+  }
+
+  _getConfig(config) {
+    config = {
+      ...this.constructor.Default,
+      ...$(this._element).data(),
+      ...config
     }
 
-    _getMenuElement() {
-      if (!this._menu) {
-        const parent = Dropdown._getParentFromElement(this._element)
-        if (parent) {
-          this._menu = parent.querySelector(Selector.MENU)
-        }
+    Util.typeCheckConfig(
+      NAME,
+      config,
+      this.constructor.DefaultType
+    )
+
+    return config
+  }
+
+  _getMenuElement() {
+    if (!this._menu) {
+      const parent = Dropdown._getParentFromElement(this._element)
+
+      if (parent) {
+        this._menu = parent.querySelector(Selector.MENU)
       }
-      return this._menu
     }
+    return this._menu
+  }
 
-    _getPlacement() {
-      const $parentDropdown = $(this._element.parentNode)
-      let placement = AttachmentMap.BOTTOM
+  _getPlacement() {
+    const $parentDropdown = $(this._element.parentNode)
+    let placement = AttachmentMap.BOTTOM
 
-      // Handle dropup
-      if ($parentDropdown.hasClass(ClassName.DROPUP)) {
-        placement = AttachmentMap.TOP
-        if ($(this._menu).hasClass(ClassName.MENURIGHT)) {
-          placement = AttachmentMap.TOPEND
-        }
-      } else if ($parentDropdown.hasClass(ClassName.DROPRIGHT)) {
-        placement = AttachmentMap.RIGHT
-      } else if ($parentDropdown.hasClass(ClassName.DROPLEFT)) {
-        placement = AttachmentMap.LEFT
-      } else if ($(this._menu).hasClass(ClassName.MENURIGHT)) {
-        placement = AttachmentMap.BOTTOMEND
+    // Handle dropup
+    if ($parentDropdown.hasClass(ClassName.DROPUP)) {
+      placement = AttachmentMap.TOP
+      if ($(this._menu).hasClass(ClassName.MENURIGHT)) {
+        placement = AttachmentMap.TOPEND
       }
-      return placement
+    } else if ($parentDropdown.hasClass(ClassName.DROPRIGHT)) {
+      placement = AttachmentMap.RIGHT
+    } else if ($parentDropdown.hasClass(ClassName.DROPLEFT)) {
+      placement = AttachmentMap.LEFT
+    } else if ($(this._menu).hasClass(ClassName.MENURIGHT)) {
+      placement = AttachmentMap.BOTTOMEND
     }
+    return placement
+  }
 
-    _detectNavbar() {
-      return $(this._element).closest('.navbar').length > 0
-    }
+  _detectNavbar() {
+    return $(this._element).closest('.navbar').length > 0
+  }
 
-    _getPopperConfig() {
-      const offsetConf = {}
-      if (typeof this._config.offset === 'function') {
-        offsetConf.fn = (data) => {
-          data.offsets = {
-            ...data.offsets,
-            ...this._config.offset(data.offsets) || {}
-          }
-          return data
-        }
-      } else {
-        offsetConf.offset = this._config.offset
-      }
+  _getOffset() {
+    const offset = {}
 
-      const popperConfig = {
-        placement: this._getPlacement(),
-        modifiers: {
-          offset: offsetConf,
-          flip: {
-            enabled: this._config.flip
-          },
-          preventOverflow: {
-            boundariesElement: this._config.boundary
-          }
+    if (typeof this._config.offset === 'function') {
+      offset.fn = (data) => {
+        data.offsets = {
+          ...data.offsets,
+          ...this._config.offset(data.offsets, this._element) || {}
         }
+
+        return data
       }
+    } else {
+      offset.offset = this._config.offset
+    }
+
+    return offset
+  }
 
-      // Disable Popper.js if we have a static display
-      if (this._config.display === 'static') {
-        popperConfig.modifiers.applyStyle = {
-          enabled: false
+  _getPopperConfig() {
+    const popperConfig = {
+      placement: this._getPlacement(),
+      modifiers: {
+        offset: this._getOffset(),
+        flip: {
+          enabled: this._config.flip
+        },
+        preventOverflow: {
+          boundariesElement: this._config.boundary
         }
       }
-      return popperConfig
     }
 
-    // Static
+    // Disable Popper.js if we have a static display
+    if (this._config.display === 'static') {
+      popperConfig.modifiers.applyStyle = {
+        enabled: false
+      }
+    }
 
-    static _jQueryInterface(config) {
-      return this.each(function () {
-        let data = $(this).data(DATA_KEY)
-        const _config = typeof config === 'object' ? config : null
+    return popperConfig
+  }
 
-        if (!data) {
-          data = new Dropdown(this, _config)
-          $(this).data(DATA_KEY, data)
-        }
+  // Static
 
-        if (typeof config === 'string') {
-          if (typeof data[config] === 'undefined') {
-            throw new TypeError(`No method named "${config}"`)
-          }
-          data[config]()
-        }
-      })
-    }
+  static _jQueryInterface(config) {
+    return this.each(function () {
+      let data = $(this).data(DATA_KEY)
+      const _config = typeof config === 'object' ? config : null
 
-    static _clearMenus(event) {
-      if (event && (event.which === RIGHT_MOUSE_BUTTON_WHICH ||
-        event.type === 'keyup' && event.which !== TAB_KEYCODE)) {
-        return
+      if (!data) {
+        data = new Dropdown(this, _config)
+        $(this).data(DATA_KEY, data)
       }
 
-      const toggles = [].slice.call(document.querySelectorAll(Selector.DATA_TOGGLE))
-      for (let i = 0, len = toggles.length; i < len; i++) {
-        const parent = Dropdown._getParentFromElement(toggles[i])
-        const context = $(toggles[i]).data(DATA_KEY)
-        const relatedTarget = {
-          relatedTarget: toggles[i]
+      if (typeof config === 'string') {
+        if (typeof data[config] === 'undefined') {
+          throw new TypeError(`No method named "${config}"`)
         }
+        data[config]()
+      }
+    })
+  }
 
-        if (event && event.type === 'click') {
-          relatedTarget.clickEvent = event
-        }
+  static _clearMenus(event) {
+    if (event && (event.which === RIGHT_MOUSE_BUTTON_WHICH ||
+      event.type === 'keyup' && event.which !== TAB_KEYCODE)) {
+      return
+    }
 
-        if (!context) {
-          continue
-        }
+    const toggles = [].slice.call(document.querySelectorAll(Selector.DATA_TOGGLE))
 
-        const dropdownMenu = context._menu
-        if (!$(parent).hasClass(ClassName.SHOW)) {
-          continue
-        }
-
-        if (event && (event.type === 'click' &&
-            /input|textarea/i.test(event.target.tagName) || event.type === 'keyup' && event.which === TAB_KEYCODE) &&
-            $.contains(parent, event.target)) {
-          continue
-        }
+    for (let i = 0, len = toggles.length; i < len; i++) {
+      const parent = Dropdown._getParentFromElement(toggles[i])
+      const context = $(toggles[i]).data(DATA_KEY)
+      const relatedTarget = {
+        relatedTarget: toggles[i]
+      }
 
-        const hideEvent = $.Event(Event.HIDE, relatedTarget)
-        $(parent).trigger(hideEvent)
-        if (hideEvent.isDefaultPrevented()) {
-          continue
-        }
+      if (event && event.type === 'click') {
+        relatedTarget.clickEvent = event
+      }
 
-        // If this is a touch-enabled device we remove the extra
-        // empty mouseover listeners we added for iOS support
-        if ('ontouchstart' in document.documentElement) {
-          $(document.body).children().off('mouseover', null, $.noop)
-        }
+      if (!context) {
+        continue
+      }
 
-        toggles[i].setAttribute('aria-expanded', 'false')
+      const dropdownMenu = context._menu
+      if (!$(parent).hasClass(ClassName.SHOW)) {
+        continue
+      }
 
-        $(dropdownMenu).removeClass(ClassName.SHOW)
-        $(parent)
-          .removeClass(ClassName.SHOW)
-          .trigger($.Event(Event.HIDDEN, relatedTarget))
+      if (event && (event.type === 'click' &&
+          /input|textarea/i.test(event.target.tagName) || event.type === 'keyup' && event.which === TAB_KEYCODE) &&
+          $.contains(parent, event.target)) {
+        continue
       }
-    }
 
-    static _getParentFromElement(element) {
-      let parent
-      const selector = Util.getSelectorFromElement(element)
+      const hideEvent = $.Event(Event.HIDE, relatedTarget)
+      $(parent).trigger(hideEvent)
+      if (hideEvent.isDefaultPrevented()) {
+        continue
+      }
 
-      if (selector) {
-        parent = document.querySelector(selector)
+      // If this is a touch-enabled device we remove the extra
+      // empty mouseover listeners we added for iOS support
+      if ('ontouchstart' in document.documentElement) {
+        $(document.body).children().off('mouseover', null, $.noop)
       }
 
-      return parent || element.parentNode
+      toggles[i].setAttribute('aria-expanded', 'false')
+
+      $(dropdownMenu).removeClass(ClassName.SHOW)
+      $(parent)
+        .removeClass(ClassName.SHOW)
+        .trigger($.Event(Event.HIDDEN, relatedTarget))
     }
+  }
 
-    // eslint-disable-next-line complexity
-    static _dataApiKeydownHandler(event) {
-      // If not input/textarea:
-      //  - And not a key in REGEXP_KEYDOWN => not a dropdown command
-      // If input/textarea:
-      //  - If space key => not a dropdown command
-      //  - If key is other than escape
-      //    - If key is not up or down => not a dropdown command
-      //    - If trigger inside the menu => not a dropdown command
-      if (/input|textarea/i.test(event.target.tagName)
-        ? event.which === SPACE_KEYCODE || event.which !== ESCAPE_KEYCODE &&
-        (event.which !== ARROW_DOWN_KEYCODE && event.which !== ARROW_UP_KEYCODE ||
-          $(event.target).closest(Selector.MENU).length) : !REGEXP_KEYDOWN.test(event.which)) {
-        return
-      }
+  static _getParentFromElement(element) {
+    let parent
+    const selector = Util.getSelectorFromElement(element)
 
-      event.preventDefault()
-      event.stopPropagation()
+    if (selector) {
+      parent = document.querySelector(selector)
+    }
 
-      if (this.disabled || $(this).hasClass(ClassName.DISABLED)) {
-        return
-      }
+    return parent || element.parentNode
+  }
 
-      const parent   = Dropdown._getParentFromElement(this)
-      const isActive = $(parent).hasClass(ClassName.SHOW)
+  // eslint-disable-next-line complexity
+  static _dataApiKeydownHandler(event) {
+    // If not input/textarea:
+    //  - And not a key in REGEXP_KEYDOWN => not a dropdown command
+    // If input/textarea:
+    //  - If space key => not a dropdown command
+    //  - If key is other than escape
+    //    - If key is not up or down => not a dropdown command
+    //    - If trigger inside the menu => not a dropdown command
+    if (/input|textarea/i.test(event.target.tagName)
+      ? event.which === SPACE_KEYCODE || event.which !== ESCAPE_KEYCODE &&
+      (event.which !== ARROW_DOWN_KEYCODE && event.which !== ARROW_UP_KEYCODE ||
+        $(event.target).closest(Selector.MENU).length) : !REGEXP_KEYDOWN.test(event.which)) {
+      return
+    }
 
-      if (!isActive && (event.which !== ESCAPE_KEYCODE || event.which !== SPACE_KEYCODE) ||
-           isActive && (event.which === ESCAPE_KEYCODE || event.which === SPACE_KEYCODE)) {
-        if (event.which === ESCAPE_KEYCODE) {
-          const toggle = parent.querySelector(Selector.DATA_TOGGLE)
-          $(toggle).trigger('focus')
-        }
+    event.preventDefault()
+    event.stopPropagation()
 
-        $(this).trigger('click')
-        return
-      }
+    if (this.disabled || $(this).hasClass(ClassName.DISABLED)) {
+      return
+    }
 
-      const items = [].slice.call(parent.querySelectorAll(Selector.VISIBLE_ITEMS))
+    const parent   = Dropdown._getParentFromElement(this)
+    const isActive = $(parent).hasClass(ClassName.SHOW)
 
-      if (items.length === 0) {
-        return
+    if (!isActive || isActive && (event.which === ESCAPE_KEYCODE || event.which === SPACE_KEYCODE)) {
+      if (event.which === ESCAPE_KEYCODE) {
+        const toggle = parent.querySelector(Selector.DATA_TOGGLE)
+        $(toggle).trigger('focus')
       }
 
-      let index = items.indexOf(event.target)
+      $(this).trigger('click')
+      return
+    }
 
-      if (event.which === ARROW_UP_KEYCODE && index > 0) { // Up
-        index--
-      }
+    const items = [].slice.call(parent.querySelectorAll(Selector.VISIBLE_ITEMS))
 
-      if (event.which === ARROW_DOWN_KEYCODE && index < items.length - 1) { // Down
-        index++
-      }
+    if (items.length === 0) {
+      return
+    }
 
-      if (index < 0) {
-        index = 0
-      }
+    let index = items.indexOf(event.target)
 
-      items[index].focus()
+    if (event.which === ARROW_UP_KEYCODE && index > 0) { // Up
+      index--
     }
-  }
 
-  /**
-   * ------------------------------------------------------------------------
-   * Data Api implementation
-   * ------------------------------------------------------------------------
-   */
-
-  $(document)
-    .on(Event.KEYDOWN_DATA_API, Selector.DATA_TOGGLE, Dropdown._dataApiKeydownHandler)
-    .on(Event.KEYDOWN_DATA_API, Selector.MENU, Dropdown._dataApiKeydownHandler)
-    .on(`${Event.CLICK_DATA_API} ${Event.KEYUP_DATA_API}`, Dropdown._clearMenus)
-    .on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE, function (event) {
-      event.preventDefault()
-      event.stopPropagation()
-      Dropdown._jQueryInterface.call($(this), 'toggle')
-    })
-    .on(Event.CLICK_DATA_API, Selector.FORM_CHILD, (e) => {
-      e.stopPropagation()
-    })
+    if (event.which === ARROW_DOWN_KEYCODE && index < items.length - 1) { // Down
+      index++
+    }
+
+    if (index < 0) {
+      index = 0
+    }
 
-  /**
-   * ------------------------------------------------------------------------
-   * jQuery
-   * ------------------------------------------------------------------------
-   */
-
-  $.fn[NAME] = Dropdown._jQueryInterface
-  $.fn[NAME].Constructor = Dropdown
-  $.fn[NAME].noConflict = function () {
-    $.fn[NAME] = JQUERY_NO_CONFLICT
-    return Dropdown._jQueryInterface
+    items[index].focus()
   }
+}
+
+/**
+ * ------------------------------------------------------------------------
+ * Data Api implementation
+ * ------------------------------------------------------------------------
+ */
+
+$(document)
+  .on(Event.KEYDOWN_DATA_API, Selector.DATA_TOGGLE, Dropdown._dataApiKeydownHandler)
+  .on(Event.KEYDOWN_DATA_API, Selector.MENU, Dropdown._dataApiKeydownHandler)
+  .on(`${Event.CLICK_DATA_API} ${Event.KEYUP_DATA_API}`, Dropdown._clearMenus)
+  .on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE, function (event) {
+    event.preventDefault()
+    event.stopPropagation()
+    Dropdown._jQueryInterface.call($(this), 'toggle')
+  })
+  .on(Event.CLICK_DATA_API, Selector.FORM_CHILD, (e) => {
+    e.stopPropagation()
+  })
+
+/**
+ * ------------------------------------------------------------------------
+ * jQuery
+ * ------------------------------------------------------------------------
+ */
+
+$.fn[NAME] = Dropdown._jQueryInterface
+$.fn[NAME].Constructor = Dropdown
+$.fn[NAME].noConflict = () => {
+  $.fn[NAME] = JQUERY_NO_CONFLICT
+  return Dropdown._jQueryInterface
+}
 
-  return Dropdown
-})($, Popper)
 
 export default Dropdown
diff --git a/vendor/twbs/bootstrap/js/src/index.js b/vendor/twbs/bootstrap/js/src/index.js
index 7304b69d3..c4a4d4b1f 100644
--- a/vendor/twbs/bootstrap/js/src/index.js
+++ b/vendor/twbs/bootstrap/js/src/index.js
@@ -8,17 +8,18 @@ import Modal from './modal'
 import Popover from './popover'
 import Scrollspy from './scrollspy'
 import Tab from './tab'
+import Toast from './toast'
 import Tooltip from './tooltip'
 import Util from './util'
 
 /**
  * --------------------------------------------------------------------------
- * Bootstrap (v4.1.3): index.js
+ * Bootstrap (v4.3.1): index.js
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  * --------------------------------------------------------------------------
  */
 
-(($) => {
+(() => {
   if (typeof $ === 'undefined') {
     throw new TypeError('Bootstrap\'s JavaScript requires jQuery. jQuery must be included before Bootstrap\'s JavaScript.')
   }
@@ -33,7 +34,7 @@ import Util from './util'
   if (version[0] < ltMajor && version[1] < minMinor || version[0] === minMajor && version[1] === minMinor && version[2] < minPatch || version[0] >= maxMajor) {
     throw new Error('Bootstrap\'s JavaScript requires at least jQuery v1.9.1 but less than v4.0.0')
   }
-})($)
+})()
 
 export {
   Util,
@@ -46,5 +47,6 @@ export {
   Popover,
   Scrollspy,
   Tab,
+  Toast,
   Tooltip
 }
diff --git a/vendor/twbs/bootstrap/js/src/modal.js b/vendor/twbs/bootstrap/js/src/modal.js
index ddcf370b6..99fe1bf2d 100644
--- a/vendor/twbs/bootstrap/js/src/modal.js
+++ b/vendor/twbs/bootstrap/js/src/modal.js
@@ -1,579 +1,594 @@
-import $ from 'jquery'
-import Util from './util'
-
 /**
  * --------------------------------------------------------------------------
- * Bootstrap (v4.1.3): modal.js
+ * Bootstrap (v4.3.1): modal.js
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  * --------------------------------------------------------------------------
  */
 
-const Modal = (($) => {
-  /**
-   * ------------------------------------------------------------------------
-   * Constants
-   * ------------------------------------------------------------------------
-   */
-
-  const NAME               = 'modal'
-  const VERSION            = '4.1.3'
-  const DATA_KEY           = 'bs.modal'
-  const EVENT_KEY          = `.${DATA_KEY}`
-  const DATA_API_KEY       = '.data-api'
-  const JQUERY_NO_CONFLICT = $.fn[NAME]
-  const ESCAPE_KEYCODE     = 27 // KeyboardEvent.which value for Escape (Esc) key
-
-  const Default = {
-    backdrop : true,
-    keyboard : true,
-    focus    : true,
-    show     : true
-  }
+import $ from 'jquery'
+import Util from './util'
 
-  const DefaultType = {
-    backdrop : '(boolean|string)',
-    keyboard : 'boolean',
-    focus    : 'boolean',
-    show     : 'boolean'
-  }
+/**
+ * ------------------------------------------------------------------------
+ * Constants
+ * ------------------------------------------------------------------------
+ */
+
+const NAME               = 'modal'
+const VERSION            = '4.3.1'
+const DATA_KEY           = 'bs.modal'
+const EVENT_KEY          = `.${DATA_KEY}`
+const DATA_API_KEY       = '.data-api'
+const JQUERY_NO_CONFLICT = $.fn[NAME]
+const ESCAPE_KEYCODE     = 27 // KeyboardEvent.which value for Escape (Esc) key
+
+const Default = {
+  backdrop : true,
+  keyboard : true,
+  focus    : true,
+  show     : true
+}
+
+const DefaultType = {
+  backdrop : '(boolean|string)',
+  keyboard : 'boolean',
+  focus    : 'boolean',
+  show     : 'boolean'
+}
+
+const Event = {
+  HIDE              : `hide${EVENT_KEY}`,
+  HIDDEN            : `hidden${EVENT_KEY}`,
+  SHOW              : `show${EVENT_KEY}`,
+  SHOWN             : `shown${EVENT_KEY}`,
+  FOCUSIN           : `focusin${EVENT_KEY}`,
+  RESIZE            : `resize${EVENT_KEY}`,
+  CLICK_DISMISS     : `click.dismiss${EVENT_KEY}`,
+  KEYDOWN_DISMISS   : `keydown.dismiss${EVENT_KEY}`,
+  MOUSEUP_DISMISS   : `mouseup.dismiss${EVENT_KEY}`,
+  MOUSEDOWN_DISMISS : `mousedown.dismiss${EVENT_KEY}`,
+  CLICK_DATA_API    : `click${EVENT_KEY}${DATA_API_KEY}`
+}
+
+const ClassName = {
+  SCROLLABLE         : 'modal-dialog-scrollable',
+  SCROLLBAR_MEASURER : 'modal-scrollbar-measure',
+  BACKDROP           : 'modal-backdrop',
+  OPEN               : 'modal-open',
+  FADE               : 'fade',
+  SHOW               : 'show'
+}
+
+const Selector = {
+  DIALOG         : '.modal-dialog',
+  MODAL_BODY     : '.modal-body',
+  DATA_TOGGLE    : '[data-toggle="modal"]',
+  DATA_DISMISS   : '[data-dismiss="modal"]',
+  FIXED_CONTENT  : '.fixed-top, .fixed-bottom, .is-fixed, .sticky-top',
+  STICKY_CONTENT : '.sticky-top'
+}
+
+/**
+ * ------------------------------------------------------------------------
+ * Class Definition
+ * ------------------------------------------------------------------------
+ */
 
-  const Event = {
-    HIDE              : `hide${EVENT_KEY}`,
-    HIDDEN            : `hidden${EVENT_KEY}`,
-    SHOW              : `show${EVENT_KEY}`,
-    SHOWN             : `shown${EVENT_KEY}`,
-    FOCUSIN           : `focusin${EVENT_KEY}`,
-    RESIZE            : `resize${EVENT_KEY}`,
-    CLICK_DISMISS     : `click.dismiss${EVENT_KEY}`,
-    KEYDOWN_DISMISS   : `keydown.dismiss${EVENT_KEY}`,
-    MOUSEUP_DISMISS   : `mouseup.dismiss${EVENT_KEY}`,
-    MOUSEDOWN_DISMISS : `mousedown.dismiss${EVENT_KEY}`,
-    CLICK_DATA_API    : `click${EVENT_KEY}${DATA_API_KEY}`
+class Modal {
+  constructor(element, config) {
+    this._config              = this._getConfig(config)
+    this._element             = element
+    this._dialog              = element.querySelector(Selector.DIALOG)
+    this._backdrop            = null
+    this._isShown             = false
+    this._isBodyOverflowing   = false
+    this._ignoreBackdropClick = false
+    this._isTransitioning     = false
+    this._scrollbarWidth      = 0
   }
 
-  const ClassName = {
-    SCROLLBAR_MEASURER : 'modal-scrollbar-measure',
-    BACKDROP           : 'modal-backdrop',
-    OPEN               : 'modal-open',
-    FADE               : 'fade',
-    SHOW               : 'show'
+  // Getters
+
+  static get VERSION() {
+    return VERSION
   }
 
-  const Selector = {
-    DIALOG             : '.modal-dialog',
-    DATA_TOGGLE        : '[data-toggle="modal"]',
-    DATA_DISMISS       : '[data-dismiss="modal"]',
-    FIXED_CONTENT      : '.fixed-top, .fixed-bottom, .is-fixed, .sticky-top',
-    STICKY_CONTENT     : '.sticky-top'
+  static get Default() {
+    return Default
   }
 
-  /**
-   * ------------------------------------------------------------------------
-   * Class Definition
-   * ------------------------------------------------------------------------
-   */
-
-  class Modal {
-    constructor(element, config) {
-      this._config              = this._getConfig(config)
-      this._element             = element
-      this._dialog              = element.querySelector(Selector.DIALOG)
-      this._backdrop            = null
-      this._isShown             = false
-      this._isBodyOverflowing   = false
-      this._ignoreBackdropClick = false
-      this._scrollbarWidth      = 0
-    }
+  // Public
 
-    // Getters
+  toggle(relatedTarget) {
+    return this._isShown ? this.hide() : this.show(relatedTarget)
+  }
 
-    static get VERSION() {
-      return VERSION
+  show(relatedTarget) {
+    if (this._isShown || this._isTransitioning) {
+      return
     }
 
-    static get Default() {
-      return Default
+    if ($(this._element).hasClass(ClassName.FADE)) {
+      this._isTransitioning = true
     }
 
-    // Public
+    const showEvent = $.Event(Event.SHOW, {
+      relatedTarget
+    })
 
-    toggle(relatedTarget) {
-      return this._isShown ? this.hide() : this.show(relatedTarget)
+    $(this._element).trigger(showEvent)
+
+    if (this._isShown || showEvent.isDefaultPrevented()) {
+      return
     }
 
-    show(relatedTarget) {
-      if (this._isTransitioning || this._isShown) {
-        return
-      }
+    this._isShown = true
 
-      if ($(this._element).hasClass(ClassName.FADE)) {
-        this._isTransitioning = true
-      }
+    this._checkScrollbar()
+    this._setScrollbar()
 
-      const showEvent = $.Event(Event.SHOW, {
-        relatedTarget
-      })
+    this._adjustDialog()
 
-      $(this._element).trigger(showEvent)
+    this._setEscapeEvent()
+    this._setResizeEvent()
 
-      if (this._isShown || showEvent.isDefaultPrevented()) {
-        return
-      }
+    $(this._element).on(
+      Event.CLICK_DISMISS,
+      Selector.DATA_DISMISS,
+      (event) => this.hide(event)
+    )
 
-      this._isShown = true
+    $(this._dialog).on(Event.MOUSEDOWN_DISMISS, () => {
+      $(this._element).one(Event.MOUSEUP_DISMISS, (event) => {
+        if ($(event.target).is(this._element)) {
+          this._ignoreBackdropClick = true
+        }
+      })
+    })
 
-      this._checkScrollbar()
-      this._setScrollbar()
+    this._showBackdrop(() => this._showElement(relatedTarget))
+  }
 
-      this._adjustDialog()
+  hide(event) {
+    if (event) {
+      event.preventDefault()
+    }
 
-      $(document.body).addClass(ClassName.OPEN)
+    if (!this._isShown || this._isTransitioning) {
+      return
+    }
 
-      this._setEscapeEvent()
-      this._setResizeEvent()
+    const hideEvent = $.Event(Event.HIDE)
 
-      $(this._element).on(
-        Event.CLICK_DISMISS,
-        Selector.DATA_DISMISS,
-        (event) => this.hide(event)
-      )
+    $(this._element).trigger(hideEvent)
 
-      $(this._dialog).on(Event.MOUSEDOWN_DISMISS, () => {
-        $(this._element).one(Event.MOUSEUP_DISMISS, (event) => {
-          if ($(event.target).is(this._element)) {
-            this._ignoreBackdropClick = true
-          }
-        })
-      })
-
-      this._showBackdrop(() => this._showElement(relatedTarget))
+    if (!this._isShown || hideEvent.isDefaultPrevented()) {
+      return
     }
 
-    hide(event) {
-      if (event) {
-        event.preventDefault()
-      }
-
-      if (this._isTransitioning || !this._isShown) {
-        return
-      }
+    this._isShown = false
+    const transition = $(this._element).hasClass(ClassName.FADE)
 
-      const hideEvent = $.Event(Event.HIDE)
+    if (transition) {
+      this._isTransitioning = true
+    }
 
-      $(this._element).trigger(hideEvent)
+    this._setEscapeEvent()
+    this._setResizeEvent()
 
-      if (!this._isShown || hideEvent.isDefaultPrevented()) {
-        return
-      }
+    $(document).off(Event.FOCUSIN)
 
-      this._isShown = false
-      const transition = $(this._element).hasClass(ClassName.FADE)
+    $(this._element).removeClass(ClassName.SHOW)
 
-      if (transition) {
-        this._isTransitioning = true
-      }
+    $(this._element).off(Event.CLICK_DISMISS)
+    $(this._dialog).off(Event.MOUSEDOWN_DISMISS)
 
-      this._setEscapeEvent()
-      this._setResizeEvent()
 
-      $(document).off(Event.FOCUSIN)
+    if (transition) {
+      const transitionDuration  = Util.getTransitionDurationFromElement(this._element)
 
-      $(this._element).removeClass(ClassName.SHOW)
+      $(this._element)
+        .one(Util.TRANSITION_END, (event) => this._hideModal(event))
+        .emulateTransitionEnd(transitionDuration)
+    } else {
+      this._hideModal()
+    }
+  }
 
-      $(this._element).off(Event.CLICK_DISMISS)
-      $(this._dialog).off(Event.MOUSEDOWN_DISMISS)
+  dispose() {
+    [window, this._element, this._dialog]
+      .forEach((htmlElement) => $(htmlElement).off(EVENT_KEY))
+
+    /**
+     * `document` has 2 events `Event.FOCUSIN` and `Event.CLICK_DATA_API`
+     * Do not move `document` in `htmlElements` array
+     * It will remove `Event.CLICK_DATA_API` event that should remain
+     */
+    $(document).off(Event.FOCUSIN)
+
+    $.removeData(this._element, DATA_KEY)
+
+    this._config              = null
+    this._element             = null
+    this._dialog              = null
+    this._backdrop            = null
+    this._isShown             = null
+    this._isBodyOverflowing   = null
+    this._ignoreBackdropClick = null
+    this._isTransitioning     = null
+    this._scrollbarWidth      = null
+  }
 
+  handleUpdate() {
+    this._adjustDialog()
+  }
 
-      if (transition) {
-        const transitionDuration  = Util.getTransitionDurationFromElement(this._element)
+  // Private
 
-        $(this._element)
-          .one(Util.TRANSITION_END, (event) => this._hideModal(event))
-          .emulateTransitionEnd(transitionDuration)
-      } else {
-        this._hideModal()
-      }
+  _getConfig(config) {
+    config = {
+      ...Default,
+      ...config
     }
+    Util.typeCheckConfig(NAME, config, DefaultType)
+    return config
+  }
 
-    dispose() {
-      $.removeData(this._element, DATA_KEY)
-
-      $(window, document, this._element, this._backdrop).off(EVENT_KEY)
-
-      this._config              = null
-      this._element             = null
-      this._dialog              = null
-      this._backdrop            = null
-      this._isShown             = null
-      this._isBodyOverflowing   = null
-      this._ignoreBackdropClick = null
-      this._scrollbarWidth      = null
-    }
+  _showElement(relatedTarget) {
+    const transition = $(this._element).hasClass(ClassName.FADE)
 
-    handleUpdate() {
-      this._adjustDialog()
+    if (!this._element.parentNode ||
+        this._element.parentNode.nodeType !== Node.ELEMENT_NODE) {
+      // Don't move modal's DOM position
+      document.body.appendChild(this._element)
     }
 
-    // Private
+    this._element.style.display = 'block'
+    this._element.removeAttribute('aria-hidden')
+    this._element.setAttribute('aria-modal', true)
 
-    _getConfig(config) {
-      config = {
-        ...Default,
-        ...config
-      }
-      Util.typeCheckConfig(NAME, config, DefaultType)
-      return config
+    if ($(this._dialog).hasClass(ClassName.SCROLLABLE)) {
+      this._dialog.querySelector(Selector.MODAL_BODY).scrollTop = 0
+    } else {
+      this._element.scrollTop = 0
     }
 
-    _showElement(relatedTarget) {
-      const transition = $(this._element).hasClass(ClassName.FADE)
-
-      if (!this._element.parentNode ||
-         this._element.parentNode.nodeType !== Node.ELEMENT_NODE) {
-        // Don't move modal's DOM position
-        document.body.appendChild(this._element)
-      }
+    if (transition) {
+      Util.reflow(this._element)
+    }
 
-      this._element.style.display = 'block'
-      this._element.removeAttribute('aria-hidden')
-      this._element.scrollTop = 0
+    $(this._element).addClass(ClassName.SHOW)
 
-      if (transition) {
-        Util.reflow(this._element)
-      }
+    if (this._config.focus) {
+      this._enforceFocus()
+    }
 
-      $(this._element).addClass(ClassName.SHOW)
+    const shownEvent = $.Event(Event.SHOWN, {
+      relatedTarget
+    })
 
+    const transitionComplete = () => {
       if (this._config.focus) {
-        this._enforceFocus()
+        this._element.focus()
       }
+      this._isTransitioning = false
+      $(this._element).trigger(shownEvent)
+    }
 
-      const shownEvent = $.Event(Event.SHOWN, {
-        relatedTarget
-      })
+    if (transition) {
+      const transitionDuration  = Util.getTransitionDurationFromElement(this._dialog)
+
+      $(this._dialog)
+        .one(Util.TRANSITION_END, transitionComplete)
+        .emulateTransitionEnd(transitionDuration)
+    } else {
+      transitionComplete()
+    }
+  }
 
-      const transitionComplete = () => {
-        if (this._config.focus) {
+  _enforceFocus() {
+    $(document)
+      .off(Event.FOCUSIN) // Guard against infinite focus loop
+      .on(Event.FOCUSIN, (event) => {
+        if (document !== event.target &&
+            this._element !== event.target &&
+            $(this._element).has(event.target).length === 0) {
           this._element.focus()
         }
-        this._isTransitioning = false
-        $(this._element).trigger(shownEvent)
-      }
-
-      if (transition) {
-        const transitionDuration  = Util.getTransitionDurationFromElement(this._element)
+      })
+  }
 
-        $(this._dialog)
-          .one(Util.TRANSITION_END, transitionComplete)
-          .emulateTransitionEnd(transitionDuration)
-      } else {
-        transitionComplete()
-      }
+  _setEscapeEvent() {
+    if (this._isShown && this._config.keyboard) {
+      $(this._element).on(Event.KEYDOWN_DISMISS, (event) => {
+        if (event.which === ESCAPE_KEYCODE) {
+          event.preventDefault()
+          this.hide()
+        }
+      })
+    } else if (!this._isShown) {
+      $(this._element).off(Event.KEYDOWN_DISMISS)
     }
+  }
 
-    _enforceFocus() {
-      $(document)
-        .off(Event.FOCUSIN) // Guard against infinite focus loop
-        .on(Event.FOCUSIN, (event) => {
-          if (document !== event.target &&
-              this._element !== event.target &&
-              $(this._element).has(event.target).length === 0) {
-            this._element.focus()
-          }
-        })
+  _setResizeEvent() {
+    if (this._isShown) {
+      $(window).on(Event.RESIZE, (event) => this.handleUpdate(event))
+    } else {
+      $(window).off(Event.RESIZE)
     }
+  }
 
-    _setEscapeEvent() {
-      if (this._isShown && this._config.keyboard) {
-        $(this._element).on(Event.KEYDOWN_DISMISS, (event) => {
-          if (event.which === ESCAPE_KEYCODE) {
-            event.preventDefault()
-            this.hide()
-          }
-        })
-      } else if (!this._isShown) {
-        $(this._element).off(Event.KEYDOWN_DISMISS)
-      }
+  _hideModal() {
+    this._element.style.display = 'none'
+    this._element.setAttribute('aria-hidden', true)
+    this._element.removeAttribute('aria-modal')
+    this._isTransitioning = false
+    this._showBackdrop(() => {
+      $(document.body).removeClass(ClassName.OPEN)
+      this._resetAdjustments()
+      this._resetScrollbar()
+      $(this._element).trigger(Event.HIDDEN)
+    })
+  }
+
+  _removeBackdrop() {
+    if (this._backdrop) {
+      $(this._backdrop).remove()
+      this._backdrop = null
     }
+  }
 
-    _setResizeEvent() {
-      if (this._isShown) {
-        $(window).on(Event.RESIZE, (event) => this.handleUpdate(event))
-      } else {
-        $(window).off(Event.RESIZE)
+  _showBackdrop(callback) {
+    const animate = $(this._element).hasClass(ClassName.FADE)
+      ? ClassName.FADE : ''
+
+    if (this._isShown && this._config.backdrop) {
+      this._backdrop = document.createElement('div')
+      this._backdrop.className = ClassName.BACKDROP
+
+      if (animate) {
+        this._backdrop.classList.add(animate)
       }
-    }
 
-    _hideModal() {
-      this._element.style.display = 'none'
-      this._element.setAttribute('aria-hidden', true)
-      this._isTransitioning = false
-      this._showBackdrop(() => {
-        $(document.body).removeClass(ClassName.OPEN)
-        this._resetAdjustments()
-        this._resetScrollbar()
-        $(this._element).trigger(Event.HIDDEN)
+      $(this._backdrop).appendTo(document.body)
+
+      $(this._element).on(Event.CLICK_DISMISS, (event) => {
+        if (this._ignoreBackdropClick) {
+          this._ignoreBackdropClick = false
+          return
+        }
+        if (event.target !== event.currentTarget) {
+          return
+        }
+        if (this._config.backdrop === 'static') {
+          this._element.focus()
+        } else {
+          this.hide()
+        }
       })
-    }
 
-    _removeBackdrop() {
-      if (this._backdrop) {
-        $(this._backdrop).remove()
-        this._backdrop = null
+      if (animate) {
+        Util.reflow(this._backdrop)
       }
-    }
 
-    _showBackdrop(callback) {
-      const animate = $(this._element).hasClass(ClassName.FADE)
-        ? ClassName.FADE : ''
+      $(this._backdrop).addClass(ClassName.SHOW)
 
-      if (this._isShown && this._config.backdrop) {
-        this._backdrop = document.createElement('div')
-        this._backdrop.className = ClassName.BACKDROP
+      if (!callback) {
+        return
+      }
 
-        if (animate) {
-          this._backdrop.classList.add(animate)
-        }
+      if (!animate) {
+        callback()
+        return
+      }
 
-        $(this._backdrop).appendTo(document.body)
-
-        $(this._element).on(Event.CLICK_DISMISS, (event) => {
-          if (this._ignoreBackdropClick) {
-            this._ignoreBackdropClick = false
-            return
-          }
-          if (event.target !== event.currentTarget) {
-            return
-          }
-          if (this._config.backdrop === 'static') {
-            this._element.focus()
-          } else {
-            this.hide()
-          }
-        })
-
-        if (animate) {
-          Util.reflow(this._backdrop)
-        }
+      const backdropTransitionDuration = Util.getTransitionDurationFromElement(this._backdrop)
 
-        $(this._backdrop).addClass(ClassName.SHOW)
+      $(this._backdrop)
+        .one(Util.TRANSITION_END, callback)
+        .emulateTransitionEnd(backdropTransitionDuration)
+    } else if (!this._isShown && this._backdrop) {
+      $(this._backdrop).removeClass(ClassName.SHOW)
 
-        if (!callback) {
-          return
-        }
-
-        if (!animate) {
+      const callbackRemove = () => {
+        this._removeBackdrop()
+        if (callback) {
           callback()
-          return
         }
+      }
 
+      if ($(this._element).hasClass(ClassName.FADE)) {
         const backdropTransitionDuration = Util.getTransitionDurationFromElement(this._backdrop)
 
         $(this._backdrop)
-          .one(Util.TRANSITION_END, callback)
+          .one(Util.TRANSITION_END, callbackRemove)
           .emulateTransitionEnd(backdropTransitionDuration)
-      } else if (!this._isShown && this._backdrop) {
-        $(this._backdrop).removeClass(ClassName.SHOW)
-
-        const callbackRemove = () => {
-          this._removeBackdrop()
-          if (callback) {
-            callback()
-          }
-        }
-
-        if ($(this._element).hasClass(ClassName.FADE)) {
-          const backdropTransitionDuration = Util.getTransitionDurationFromElement(this._backdrop)
-
-          $(this._backdrop)
-            .one(Util.TRANSITION_END, callbackRemove)
-            .emulateTransitionEnd(backdropTransitionDuration)
-        } else {
-          callbackRemove()
-        }
-      } else if (callback) {
-        callback()
+      } else {
+        callbackRemove()
       }
+    } else if (callback) {
+      callback()
     }
+  }
 
-    // ----------------------------------------------------------------------
-    // the following methods are used to handle overflowing modals
-    // todo (fat): these should probably be refactored out of modal.js
-    // ----------------------------------------------------------------------
-
-    _adjustDialog() {
-      const isModalOverflowing =
-        this._element.scrollHeight > document.documentElement.clientHeight
+  // ----------------------------------------------------------------------
+  // the following methods are used to handle overflowing modals
+  // todo (fat): these should probably be refactored out of modal.js
+  // ----------------------------------------------------------------------
 
-      if (!this._isBodyOverflowing && isModalOverflowing) {
-        this._element.style.paddingLeft = `${this._scrollbarWidth}px`
-      }
+  _adjustDialog() {
+    const isModalOverflowing =
+      this._element.scrollHeight > document.documentElement.clientHeight
 
-      if (this._isBodyOverflowing && !isModalOverflowing) {
-        this._element.style.paddingRight = `${this._scrollbarWidth}px`
-      }
+    if (!this._isBodyOverflowing && isModalOverflowing) {
+      this._element.style.paddingLeft = `${this._scrollbarWidth}px`
     }
 
-    _resetAdjustments() {
-      this._element.style.paddingLeft = ''
-      this._element.style.paddingRight = ''
+    if (this._isBodyOverflowing && !isModalOverflowing) {
+      this._element.style.paddingRight = `${this._scrollbarWidth}px`
     }
+  }
 
-    _checkScrollbar() {
-      const rect = document.body.getBoundingClientRect()
-      this._isBodyOverflowing = rect.left + rect.right < window.innerWidth
-      this._scrollbarWidth = this._getScrollbarWidth()
-    }
+  _resetAdjustments() {
+    this._element.style.paddingLeft = ''
+    this._element.style.paddingRight = ''
+  }
 
-    _setScrollbar() {
-      if (this._isBodyOverflowing) {
-        // Note: DOMNode.style.paddingRight returns the actual value or '' if not set
-        //   while $(DOMNode).css('padding-right') returns the calculated value or 0 if not set
-        const fixedContent = [].slice.call(document.querySelectorAll(Selector.FIXED_CONTENT))
-        const stickyContent = [].slice.call(document.querySelectorAll(Selector.STICKY_CONTENT))
-
-        // Adjust fixed content padding
-        $(fixedContent).each((index, element) => {
-          const actualPadding = element.style.paddingRight
-          const calculatedPadding = $(element).css('padding-right')
-          $(element)
-            .data('padding-right', actualPadding)
-            .css('padding-right', `${parseFloat(calculatedPadding) + this._scrollbarWidth}px`)
-        })
-
-        // Adjust sticky content margin
-        $(stickyContent).each((index, element) => {
-          const actualMargin = element.style.marginRight
-          const calculatedMargin = $(element).css('margin-right')
-          $(element)
-            .data('margin-right', actualMargin)
-            .css('margin-right', `${parseFloat(calculatedMargin) - this._scrollbarWidth}px`)
-        })
-
-        // Adjust body padding
-        const actualPadding = document.body.style.paddingRight
-        const calculatedPadding = $(document.body).css('padding-right')
-        $(document.body)
-          .data('padding-right', actualPadding)
-          .css('padding-right', `${parseFloat(calculatedPadding) + this._scrollbarWidth}px`)
-      }
-    }
+  _checkScrollbar() {
+    const rect = document.body.getBoundingClientRect()
+    this._isBodyOverflowing = rect.left + rect.right < window.innerWidth
+    this._scrollbarWidth = this._getScrollbarWidth()
+  }
 
-    _resetScrollbar() {
-      // Restore fixed content padding
+  _setScrollbar() {
+    if (this._isBodyOverflowing) {
+      // Note: DOMNode.style.paddingRight returns the actual value or '' if not set
+      //   while $(DOMNode).css('padding-right') returns the calculated value or 0 if not set
       const fixedContent = [].slice.call(document.querySelectorAll(Selector.FIXED_CONTENT))
+      const stickyContent = [].slice.call(document.querySelectorAll(Selector.STICKY_CONTENT))
+
+      // Adjust fixed content padding
       $(fixedContent).each((index, element) => {
-        const padding = $(element).data('padding-right')
-        $(element).removeData('padding-right')
-        element.style.paddingRight = padding ? padding : ''
+        const actualPadding = element.style.paddingRight
+        const calculatedPadding = $(element).css('padding-right')
+        $(element)
+          .data('padding-right', actualPadding)
+          .css('padding-right', `${parseFloat(calculatedPadding) + this._scrollbarWidth}px`)
       })
 
-      // Restore sticky content
-      const elements = [].slice.call(document.querySelectorAll(`${Selector.STICKY_CONTENT}`))
-      $(elements).each((index, element) => {
-        const margin = $(element).data('margin-right')
-        if (typeof margin !== 'undefined') {
-          $(element).css('margin-right', margin).removeData('margin-right')
-        }
+      // Adjust sticky content margin
+      $(stickyContent).each((index, element) => {
+        const actualMargin = element.style.marginRight
+        const calculatedMargin = $(element).css('margin-right')
+        $(element)
+          .data('margin-right', actualMargin)
+          .css('margin-right', `${parseFloat(calculatedMargin) - this._scrollbarWidth}px`)
       })
 
-      // Restore body padding
-      const padding = $(document.body).data('padding-right')
-      $(document.body).removeData('padding-right')
-      document.body.style.paddingRight = padding ? padding : ''
+      // Adjust body padding
+      const actualPadding = document.body.style.paddingRight
+      const calculatedPadding = $(document.body).css('padding-right')
+      $(document.body)
+        .data('padding-right', actualPadding)
+        .css('padding-right', `${parseFloat(calculatedPadding) + this._scrollbarWidth}px`)
     }
 
-    _getScrollbarWidth() { // thx d.walsh
-      const scrollDiv = document.createElement('div')
-      scrollDiv.className = ClassName.SCROLLBAR_MEASURER
-      document.body.appendChild(scrollDiv)
-      const scrollbarWidth = scrollDiv.getBoundingClientRect().width - scrollDiv.clientWidth
-      document.body.removeChild(scrollDiv)
-      return scrollbarWidth
-    }
+    $(document.body).addClass(ClassName.OPEN)
+  }
 
-    // Static
+  _resetScrollbar() {
+    // Restore fixed content padding
+    const fixedContent = [].slice.call(document.querySelectorAll(Selector.FIXED_CONTENT))
+    $(fixedContent).each((index, element) => {
+      const padding = $(element).data('padding-right')
+      $(element).removeData('padding-right')
+      element.style.paddingRight = padding ? padding : ''
+    })
 
-    static _jQueryInterface(config, relatedTarget) {
-      return this.each(function () {
-        let data = $(this).data(DATA_KEY)
-        const _config = {
-          ...Default,
-          ...$(this).data(),
-          ...typeof config === 'object' && config ? config : {}
-        }
+    // Restore sticky content
+    const elements = [].slice.call(document.querySelectorAll(`${Selector.STICKY_CONTENT}`))
+    $(elements).each((index, element) => {
+      const margin = $(element).data('margin-right')
+      if (typeof margin !== 'undefined') {
+        $(element).css('margin-right', margin).removeData('margin-right')
+      }
+    })
 
-        if (!data) {
-          data = new Modal(this, _config)
-          $(this).data(DATA_KEY, data)
-        }
+    // Restore body padding
+    const padding = $(document.body).data('padding-right')
+    $(document.body).removeData('padding-right')
+    document.body.style.paddingRight = padding ? padding : ''
+  }
+
+  _getScrollbarWidth() { // thx d.walsh
+    const scrollDiv = document.createElement('div')
+    scrollDiv.className = ClassName.SCROLLBAR_MEASURER
+    document.body.appendChild(scrollDiv)
+    const scrollbarWidth = scrollDiv.getBoundingClientRect().width - scrollDiv.clientWidth
+    document.body.removeChild(scrollDiv)
+    return scrollbarWidth
+  }
+
+  // Static
+
+  static _jQueryInterface(config, relatedTarget) {
+    return this.each(function () {
+      let data = $(this).data(DATA_KEY)
+      const _config = {
+        ...Default,
+        ...$(this).data(),
+        ...typeof config === 'object' && config ? config : {}
+      }
+
+      if (!data) {
+        data = new Modal(this, _config)
+        $(this).data(DATA_KEY, data)
+      }
 
-        if (typeof config === 'string') {
-          if (typeof data[config] === 'undefined') {
-            throw new TypeError(`No method named "${config}"`)
-          }
-          data[config](relatedTarget)
-        } else if (_config.show) {
-          data.show(relatedTarget)
+      if (typeof config === 'string') {
+        if (typeof data[config] === 'undefined') {
+          throw new TypeError(`No method named "${config}"`)
         }
-      })
-    }
+        data[config](relatedTarget)
+      } else if (_config.show) {
+        data.show(relatedTarget)
+      }
+    })
   }
+}
 
-  /**
-   * ------------------------------------------------------------------------
-   * Data Api implementation
-   * ------------------------------------------------------------------------
-   */
+/**
+ * ------------------------------------------------------------------------
+ * Data Api implementation
+ * ------------------------------------------------------------------------
+ */
+
+$(document).on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE, function (event) {
+  let target
+  const selector = Util.getSelectorFromElement(this)
 
-  $(document).on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE, function (event) {
-    let target
-    const selector = Util.getSelectorFromElement(this)
+  if (selector) {
+    target = document.querySelector(selector)
+  }
 
-    if (selector) {
-      target = document.querySelector(selector)
+  const config = $(target).data(DATA_KEY)
+    ? 'toggle' : {
+      ...$(target).data(),
+      ...$(this).data()
     }
 
-    const config = $(target).data(DATA_KEY)
-      ? 'toggle' : {
-        ...$(target).data(),
-        ...$(this).data()
-      }
+  if (this.tagName === 'A' || this.tagName === 'AREA') {
+    event.preventDefault()
+  }
 
-    if (this.tagName === 'A' || this.tagName === 'AREA') {
-      event.preventDefault()
+  const $target = $(target).one(Event.SHOW, (showEvent) => {
+    if (showEvent.isDefaultPrevented()) {
+      // Only register focus restorer if modal will actually get shown
+      return
     }
 
-    const $target = $(target).one(Event.SHOW, (showEvent) => {
-      if (showEvent.isDefaultPrevented()) {
-        // Only register focus restorer if modal will actually get shown
-        return
+    $target.one(Event.HIDDEN, () => {
+      if ($(this).is(':visible')) {
+        this.focus()
       }
-
-      $target.one(Event.HIDDEN, () => {
-        if ($(this).is(':visible')) {
-          this.focus()
-        }
-      })
     })
-
-    Modal._jQueryInterface.call($(target), config, this)
   })
 
-  /**
-   * ------------------------------------------------------------------------
-   * jQuery
-   * ------------------------------------------------------------------------
-   */
-
-  $.fn[NAME] = Modal._jQueryInterface
-  $.fn[NAME].Constructor = Modal
-  $.fn[NAME].noConflict = function () {
-    $.fn[NAME] = JQUERY_NO_CONFLICT
-    return Modal._jQueryInterface
-  }
+  Modal._jQueryInterface.call($(target), config, this)
+})
+
+/**
+ * ------------------------------------------------------------------------
+ * jQuery
+ * ------------------------------------------------------------------------
+ */
 
-  return Modal
-})($)
+$.fn[NAME] = Modal._jQueryInterface
+$.fn[NAME].Constructor = Modal
+$.fn[NAME].noConflict = () => {
+  $.fn[NAME] = JQUERY_NO_CONFLICT
+  return Modal._jQueryInterface
+}
 
 export default Modal
diff --git a/vendor/twbs/bootstrap/js/src/popover.js b/vendor/twbs/bootstrap/js/src/popover.js
index eade7cf58..98f2f3fbe 100644
--- a/vendor/twbs/bootstrap/js/src/popover.js
+++ b/vendor/twbs/bootstrap/js/src/popover.js
@@ -1,188 +1,184 @@
-import $ from 'jquery'
-import Tooltip from './tooltip'
-
 /**
  * --------------------------------------------------------------------------
- * Bootstrap (v4.1.3): popover.js
+ * Bootstrap (v4.3.1): popover.js
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  * --------------------------------------------------------------------------
  */
 
-const Popover = (($) => {
-  /**
-   * ------------------------------------------------------------------------
-   * Constants
-   * ------------------------------------------------------------------------
-   */
-
-  const NAME                = 'popover'
-  const VERSION             = '4.1.3'
-  const DATA_KEY            = 'bs.popover'
-  const EVENT_KEY           = `.${DATA_KEY}`
-  const JQUERY_NO_CONFLICT  = $.fn[NAME]
-  const CLASS_PREFIX        = 'bs-popover'
-  const BSCLS_PREFIX_REGEX  = new RegExp(`(^|\\s)${CLASS_PREFIX}\\S+`, 'g')
-
-  const Default = {
-    ...Tooltip.Default,
-    placement : 'right',
-    trigger   : 'click',
-    content   : '',
-    template  : '<div class="popover" role="tooltip">' +
-                '<div class="arrow"></div>' +
-                '<h3 class="popover-header"></h3>' +
-                '<div class="popover-body"></div></div>'
+import $ from 'jquery'
+import Tooltip from './tooltip'
+
+/**
+ * ------------------------------------------------------------------------
+ * Constants
+ * ------------------------------------------------------------------------
+ */
+
+const NAME                = 'popover'
+const VERSION             = '4.3.1'
+const DATA_KEY            = 'bs.popover'
+const EVENT_KEY           = `.${DATA_KEY}`
+const JQUERY_NO_CONFLICT  = $.fn[NAME]
+const CLASS_PREFIX        = 'bs-popover'
+const BSCLS_PREFIX_REGEX  = new RegExp(`(^|\\s)${CLASS_PREFIX}\\S+`, 'g')
+
+const Default = {
+  ...Tooltip.Default,
+  placement : 'right',
+  trigger   : 'click',
+  content   : '',
+  template  : '<div class="popover" role="tooltip">' +
+              '<div class="arrow"></div>' +
+              '<h3 class="popover-header"></h3>' +
+              '<div class="popover-body"></div></div>'
+}
+
+const DefaultType = {
+  ...Tooltip.DefaultType,
+  content : '(string|element|function)'
+}
+
+const ClassName = {
+  FADE : 'fade',
+  SHOW : 'show'
+}
+
+const Selector = {
+  TITLE   : '.popover-header',
+  CONTENT : '.popover-body'
+}
+
+const Event = {
+  HIDE       : `hide${EVENT_KEY}`,
+  HIDDEN     : `hidden${EVENT_KEY}`,
+  SHOW       : `show${EVENT_KEY}`,
+  SHOWN      : `shown${EVENT_KEY}`,
+  INSERTED   : `inserted${EVENT_KEY}`,
+  CLICK      : `click${EVENT_KEY}`,
+  FOCUSIN    : `focusin${EVENT_KEY}`,
+  FOCUSOUT   : `focusout${EVENT_KEY}`,
+  MOUSEENTER : `mouseenter${EVENT_KEY}`,
+  MOUSELEAVE : `mouseleave${EVENT_KEY}`
+}
+
+/**
+ * ------------------------------------------------------------------------
+ * Class Definition
+ * ------------------------------------------------------------------------
+ */
+
+class Popover extends Tooltip {
+  // Getters
+
+  static get VERSION() {
+    return VERSION
   }
 
-  const DefaultType = {
-    ...Tooltip.DefaultType,
-    content : '(string|element|function)'
+  static get Default() {
+    return Default
   }
 
-  const ClassName = {
-    FADE : 'fade',
-    SHOW : 'show'
+  static get NAME() {
+    return NAME
   }
 
-  const Selector = {
-    TITLE   : '.popover-header',
-    CONTENT : '.popover-body'
+  static get DATA_KEY() {
+    return DATA_KEY
   }
 
-  const Event = {
-    HIDE       : `hide${EVENT_KEY}`,
-    HIDDEN     : `hidden${EVENT_KEY}`,
-    SHOW       : `show${EVENT_KEY}`,
-    SHOWN      : `shown${EVENT_KEY}`,
-    INSERTED   : `inserted${EVENT_KEY}`,
-    CLICK      : `click${EVENT_KEY}`,
-    FOCUSIN    : `focusin${EVENT_KEY}`,
-    FOCUSOUT   : `focusout${EVENT_KEY}`,
-    MOUSEENTER : `mouseenter${EVENT_KEY}`,
-    MOUSELEAVE : `mouseleave${EVENT_KEY}`
+  static get Event() {
+    return Event
   }
 
-  /**
-   * ------------------------------------------------------------------------
-   * Class Definition
-   * ------------------------------------------------------------------------
-   */
+  static get EVENT_KEY() {
+    return EVENT_KEY
+  }
 
-  class Popover extends Tooltip {
-    // Getters
+  static get DefaultType() {
+    return DefaultType
+  }
 
-    static get VERSION() {
-      return VERSION
-    }
+  // Overrides
 
-    static get Default() {
-      return Default
-    }
+  isWithContent() {
+    return this.getTitle() || this._getContent()
+  }
 
-    static get NAME() {
-      return NAME
-    }
+  addAttachmentClass(attachment) {
+    $(this.getTipElement()).addClass(`${CLASS_PREFIX}-${attachment}`)
+  }
 
-    static get DATA_KEY() {
-      return DATA_KEY
-    }
+  getTipElement() {
+    this.tip = this.tip || $(this.config.template)[0]
+    return this.tip
+  }
 
-    static get Event() {
-      return Event
-    }
+  setContent() {
+    const $tip = $(this.getTipElement())
 
-    static get EVENT_KEY() {
-      return EVENT_KEY
+    // We use append for html objects to maintain js events
+    this.setElementContent($tip.find(Selector.TITLE), this.getTitle())
+    let content = this._getContent()
+    if (typeof content === 'function') {
+      content = content.call(this.element)
     }
+    this.setElementContent($tip.find(Selector.CONTENT), content)
 
-    static get DefaultType() {
-      return DefaultType
-    }
+    $tip.removeClass(`${ClassName.FADE} ${ClassName.SHOW}`)
+  }
 
-    // Overrides
+  // Private
 
-    isWithContent() {
-      return this.getTitle() || this._getContent()
-    }
+  _getContent() {
+    return this.element.getAttribute('data-content') ||
+      this.config.content
+  }
 
-    addAttachmentClass(attachment) {
-      $(this.getTipElement()).addClass(`${CLASS_PREFIX}-${attachment}`)
+  _cleanTipClass() {
+    const $tip = $(this.getTipElement())
+    const tabClass = $tip.attr('class').match(BSCLS_PREFIX_REGEX)
+    if (tabClass !== null && tabClass.length > 0) {
+      $tip.removeClass(tabClass.join(''))
     }
+  }
 
-    getTipElement() {
-      this.tip = this.tip || $(this.config.template)[0]
-      return this.tip
-    }
+  // Static
 
-    setContent() {
-      const $tip = $(this.getTipElement())
+  static _jQueryInterface(config) {
+    return this.each(function () {
+      let data = $(this).data(DATA_KEY)
+      const _config = typeof config === 'object' ? config : null
 
-      // We use append for html objects to maintain js events
-      this.setElementContent($tip.find(Selector.TITLE), this.getTitle())
-      let content = this._getContent()
-      if (typeof content === 'function') {
-        content = content.call(this.element)
+      if (!data && /dispose|hide/.test(config)) {
+        return
       }
-      this.setElementContent($tip.find(Selector.CONTENT), content)
 
-      $tip.removeClass(`${ClassName.FADE} ${ClassName.SHOW}`)
-    }
-
-    // Private
-
-    _getContent() {
-      return this.element.getAttribute('data-content') ||
-        this.config.content
-    }
-
-    _cleanTipClass() {
-      const $tip = $(this.getTipElement())
-      const tabClass = $tip.attr('class').match(BSCLS_PREFIX_REGEX)
-      if (tabClass !== null && tabClass.length > 0) {
-        $tip.removeClass(tabClass.join(''))
+      if (!data) {
+        data = new Popover(this, _config)
+        $(this).data(DATA_KEY, data)
       }
-    }
 
-    // Static
-
-    static _jQueryInterface(config) {
-      return this.each(function () {
-        let data = $(this).data(DATA_KEY)
-        const _config = typeof config === 'object' ? config : null
-
-        if (!data && /destroy|hide/.test(config)) {
-          return
-        }
-
-        if (!data) {
-          data = new Popover(this, _config)
-          $(this).data(DATA_KEY, data)
-        }
-
-        if (typeof config === 'string') {
-          if (typeof data[config] === 'undefined') {
-            throw new TypeError(`No method named "${config}"`)
-          }
-          data[config]()
+      if (typeof config === 'string') {
+        if (typeof data[config] === 'undefined') {
+          throw new TypeError(`No method named "${config}"`)
         }
-      })
-    }
+        data[config]()
+      }
+    })
   }
+}
 
-  /**
-   * ------------------------------------------------------------------------
-   * jQuery
-   * ------------------------------------------------------------------------
-   */
-
-  $.fn[NAME] = Popover._jQueryInterface
-  $.fn[NAME].Constructor = Popover
-  $.fn[NAME].noConflict = function () {
-    $.fn[NAME] = JQUERY_NO_CONFLICT
-    return Popover._jQueryInterface
-  }
+/**
+ * ------------------------------------------------------------------------
+ * jQuery
+ * ------------------------------------------------------------------------
+ */
 
-  return Popover
-})($)
+$.fn[NAME] = Popover._jQueryInterface
+$.fn[NAME].Constructor = Popover
+$.fn[NAME].noConflict = () => {
+  $.fn[NAME] = JQUERY_NO_CONFLICT
+  return Popover._jQueryInterface
+}
 
 export default Popover
diff --git a/vendor/twbs/bootstrap/js/src/scrollspy.js b/vendor/twbs/bootstrap/js/src/scrollspy.js
index 5cbffc650..e8cd6bf98 100644
--- a/vendor/twbs/bootstrap/js/src/scrollspy.js
+++ b/vendor/twbs/bootstrap/js/src/scrollspy.js
@@ -1,332 +1,326 @@
-import $ from 'jquery'
-import Util from './util'
-
 /**
  * --------------------------------------------------------------------------
- * Bootstrap (v4.1.3): scrollspy.js
+ * Bootstrap (v4.3.1): scrollspy.js
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  * --------------------------------------------------------------------------
  */
 
-const ScrollSpy = (($) => {
-  /**
-   * ------------------------------------------------------------------------
-   * Constants
-   * ------------------------------------------------------------------------
-   */
-
-  const NAME               = 'scrollspy'
-  const VERSION            = '4.1.3'
-  const DATA_KEY           = 'bs.scrollspy'
-  const EVENT_KEY          = `.${DATA_KEY}`
-  const DATA_API_KEY       = '.data-api'
-  const JQUERY_NO_CONFLICT = $.fn[NAME]
-
-  const Default = {
-    offset : 10,
-    method : 'auto',
-    target : ''
-  }
+import $ from 'jquery'
+import Util from './util'
 
-  const DefaultType = {
-    offset : 'number',
-    method : 'string',
-    target : '(string|element)'
-  }
+/**
+ * ------------------------------------------------------------------------
+ * Constants
+ * ------------------------------------------------------------------------
+ */
 
-  const Event = {
-    ACTIVATE      : `activate${EVENT_KEY}`,
-    SCROLL        : `scroll${EVENT_KEY}`,
-    LOAD_DATA_API : `load${EVENT_KEY}${DATA_API_KEY}`
-  }
+const NAME               = 'scrollspy'
+const VERSION            = '4.3.1'
+const DATA_KEY           = 'bs.scrollspy'
+const EVENT_KEY          = `.${DATA_KEY}`
+const DATA_API_KEY       = '.data-api'
+const JQUERY_NO_CONFLICT = $.fn[NAME]
+
+const Default = {
+  offset : 10,
+  method : 'auto',
+  target : ''
+}
+
+const DefaultType = {
+  offset : 'number',
+  method : 'string',
+  target : '(string|element)'
+}
+
+const Event = {
+  ACTIVATE      : `activate${EVENT_KEY}`,
+  SCROLL        : `scroll${EVENT_KEY}`,
+  LOAD_DATA_API : `load${EVENT_KEY}${DATA_API_KEY}`
+}
+
+const ClassName = {
+  DROPDOWN_ITEM : 'dropdown-item',
+  DROPDOWN_MENU : 'dropdown-menu',
+  ACTIVE        : 'active'
+}
+
+const Selector = {
+  DATA_SPY        : '[data-spy="scroll"]',
+  ACTIVE          : '.active',
+  NAV_LIST_GROUP  : '.nav, .list-group',
+  NAV_LINKS       : '.nav-link',
+  NAV_ITEMS       : '.nav-item',
+  LIST_ITEMS      : '.list-group-item',
+  DROPDOWN        : '.dropdown',
+  DROPDOWN_ITEMS  : '.dropdown-item',
+  DROPDOWN_TOGGLE : '.dropdown-toggle'
+}
+
+const OffsetMethod = {
+  OFFSET   : 'offset',
+  POSITION : 'position'
+}
 
-  const ClassName = {
-    DROPDOWN_ITEM : 'dropdown-item',
-    DROPDOWN_MENU : 'dropdown-menu',
-    ACTIVE        : 'active'
-  }
+/**
+ * ------------------------------------------------------------------------
+ * Class Definition
+ * ------------------------------------------------------------------------
+ */
 
-  const Selector = {
-    DATA_SPY        : '[data-spy="scroll"]',
-    ACTIVE          : '.active',
-    NAV_LIST_GROUP  : '.nav, .list-group',
-    NAV_LINKS       : '.nav-link',
-    NAV_ITEMS       : '.nav-item',
-    LIST_ITEMS      : '.list-group-item',
-    DROPDOWN        : '.dropdown',
-    DROPDOWN_ITEMS  : '.dropdown-item',
-    DROPDOWN_TOGGLE : '.dropdown-toggle'
+class ScrollSpy {
+  constructor(element, config) {
+    this._element       = element
+    this._scrollElement = element.tagName === 'BODY' ? window : element
+    this._config        = this._getConfig(config)
+    this._selector      = `${this._config.target} ${Selector.NAV_LINKS},` +
+                          `${this._config.target} ${Selector.LIST_ITEMS},` +
+                          `${this._config.target} ${Selector.DROPDOWN_ITEMS}`
+    this._offsets       = []
+    this._targets       = []
+    this._activeTarget  = null
+    this._scrollHeight  = 0
+
+    $(this._scrollElement).on(Event.SCROLL, (event) => this._process(event))
+
+    this.refresh()
+    this._process()
   }
 
-  const OffsetMethod = {
-    OFFSET   : 'offset',
-    POSITION : 'position'
-  }
+  // Getters
 
-  /**
-   * ------------------------------------------------------------------------
-   * Class Definition
-   * ------------------------------------------------------------------------
-   */
-
-  class ScrollSpy {
-    constructor(element, config) {
-      this._element       = element
-      this._scrollElement = element.tagName === 'BODY' ? window : element
-      this._config        = this._getConfig(config)
-      this._selector      = `${this._config.target} ${Selector.NAV_LINKS},` +
-                            `${this._config.target} ${Selector.LIST_ITEMS},` +
-                            `${this._config.target} ${Selector.DROPDOWN_ITEMS}`
-      this._offsets       = []
-      this._targets       = []
-      this._activeTarget  = null
-      this._scrollHeight  = 0
-
-      $(this._scrollElement).on(Event.SCROLL, (event) => this._process(event))
+  static get VERSION() {
+    return VERSION
+  }
 
-      this.refresh()
-      this._process()
-    }
+  static get Default() {
+    return Default
+  }
 
-    // Getters
+  // Public
 
-    static get VERSION() {
-      return VERSION
-    }
+  refresh() {
+    const autoMethod = this._scrollElement === this._scrollElement.window
+      ? OffsetMethod.OFFSET : OffsetMethod.POSITION
 
-    static get Default() {
-      return Default
-    }
+    const offsetMethod = this._config.method === 'auto'
+      ? autoMethod : this._config.method
 
-    // Public
+    const offsetBase = offsetMethod === OffsetMethod.POSITION
+      ? this._getScrollTop() : 0
 
-    refresh() {
-      const autoMethod = this._scrollElement === this._scrollElement.window
-        ? OffsetMethod.OFFSET : OffsetMethod.POSITION
+    this._offsets = []
+    this._targets = []
 
-      const offsetMethod = this._config.method === 'auto'
-        ? autoMethod : this._config.method
+    this._scrollHeight = this._getScrollHeight()
 
-      const offsetBase = offsetMethod === OffsetMethod.POSITION
-        ? this._getScrollTop() : 0
+    const targets = [].slice.call(document.querySelectorAll(this._selector))
 
-      this._offsets = []
-      this._targets = []
+    targets
+      .map((element) => {
+        let target
+        const targetSelector = Util.getSelectorFromElement(element)
 
-      this._scrollHeight = this._getScrollHeight()
+        if (targetSelector) {
+          target = document.querySelector(targetSelector)
+        }
 
-      const targets = [].slice.call(document.querySelectorAll(this._selector))
+        if (target) {
+          const targetBCR = target.getBoundingClientRect()
+          if (targetBCR.width || targetBCR.height) {
+            // TODO (fat): remove sketch reliance on jQuery position/offset
+            return [
+              $(target)[offsetMethod]().top + offsetBase,
+              targetSelector
+            ]
+          }
+        }
+        return null
+      })
+      .filter((item) => item)
+      .sort((a, b) => a[0] - b[0])
+      .forEach((item) => {
+        this._offsets.push(item[0])
+        this._targets.push(item[1])
+      })
+  }
 
-      targets
-        .map((element) => {
-          let target
-          const targetSelector = Util.getSelectorFromElement(element)
+  dispose() {
+    $.removeData(this._element, DATA_KEY)
+    $(this._scrollElement).off(EVENT_KEY)
+
+    this._element       = null
+    this._scrollElement = null
+    this._config        = null
+    this._selector      = null
+    this._offsets       = null
+    this._targets       = null
+    this._activeTarget  = null
+    this._scrollHeight  = null
+  }
 
-          if (targetSelector) {
-            target = document.querySelector(targetSelector)
-          }
+  // Private
 
-          if (target) {
-            const targetBCR = target.getBoundingClientRect()
-            if (targetBCR.width || targetBCR.height) {
-              // TODO (fat): remove sketch reliance on jQuery position/offset
-              return [
-                $(target)[offsetMethod]().top + offsetBase,
-                targetSelector
-              ]
-            }
-          }
-          return null
-        })
-        .filter((item) => item)
-        .sort((a, b) => a[0] - b[0])
-        .forEach((item) => {
-          this._offsets.push(item[0])
-          this._targets.push(item[1])
-        })
+  _getConfig(config) {
+    config = {
+      ...Default,
+      ...typeof config === 'object' && config ? config : {}
     }
 
-    dispose() {
-      $.removeData(this._element, DATA_KEY)
-      $(this._scrollElement).off(EVENT_KEY)
-
-      this._element       = null
-      this._scrollElement = null
-      this._config        = null
-      this._selector      = null
-      this._offsets       = null
-      this._targets       = null
-      this._activeTarget  = null
-      this._scrollHeight  = null
+    if (typeof config.target !== 'string') {
+      let id = $(config.target).attr('id')
+      if (!id) {
+        id = Util.getUID(NAME)
+        $(config.target).attr('id', id)
+      }
+      config.target = `#${id}`
     }
 
-    // Private
-
-    _getConfig(config) {
-      config = {
-        ...Default,
-        ...typeof config === 'object' && config ? config : {}
-      }
+    Util.typeCheckConfig(NAME, config, DefaultType)
 
-      if (typeof config.target !== 'string') {
-        let id = $(config.target).attr('id')
-        if (!id) {
-          id = Util.getUID(NAME)
-          $(config.target).attr('id', id)
-        }
-        config.target = `#${id}`
-      }
+    return config
+  }
 
-      Util.typeCheckConfig(NAME, config, DefaultType)
+  _getScrollTop() {
+    return this._scrollElement === window
+      ? this._scrollElement.pageYOffset : this._scrollElement.scrollTop
+  }
 
-      return config
-    }
+  _getScrollHeight() {
+    return this._scrollElement.scrollHeight || Math.max(
+      document.body.scrollHeight,
+      document.documentElement.scrollHeight
+    )
+  }
 
-    _getScrollTop() {
-      return this._scrollElement === window
-        ? this._scrollElement.pageYOffset : this._scrollElement.scrollTop
-    }
+  _getOffsetHeight() {
+    return this._scrollElement === window
+      ? window.innerHeight : this._scrollElement.getBoundingClientRect().height
+  }
 
-    _getScrollHeight() {
-      return this._scrollElement.scrollHeight || Math.max(
-        document.body.scrollHeight,
-        document.documentElement.scrollHeight
-      )
-    }
+  _process() {
+    const scrollTop    = this._getScrollTop() + this._config.offset
+    const scrollHeight = this._getScrollHeight()
+    const maxScroll    = this._config.offset +
+      scrollHeight -
+      this._getOffsetHeight()
 
-    _getOffsetHeight() {
-      return this._scrollElement === window
-        ? window.innerHeight : this._scrollElement.getBoundingClientRect().height
+    if (this._scrollHeight !== scrollHeight) {
+      this.refresh()
     }
 
-    _process() {
-      const scrollTop    = this._getScrollTop() + this._config.offset
-      const scrollHeight = this._getScrollHeight()
-      const maxScroll    = this._config.offset +
-        scrollHeight -
-        this._getOffsetHeight()
-
-      if (this._scrollHeight !== scrollHeight) {
-        this.refresh()
-      }
-
-      if (scrollTop >= maxScroll) {
-        const target = this._targets[this._targets.length - 1]
+    if (scrollTop >= maxScroll) {
+      const target = this._targets[this._targets.length - 1]
 
-        if (this._activeTarget !== target) {
-          this._activate(target)
-        }
-        return
+      if (this._activeTarget !== target) {
+        this._activate(target)
       }
+      return
+    }
 
-      if (this._activeTarget && scrollTop < this._offsets[0] && this._offsets[0] > 0) {
-        this._activeTarget = null
-        this._clear()
-        return
-      }
+    if (this._activeTarget && scrollTop < this._offsets[0] && this._offsets[0] > 0) {
+      this._activeTarget = null
+      this._clear()
+      return
+    }
 
-      const offsetLength = this._offsets.length
-      for (let i = offsetLength; i--;) {
-        const isActiveTarget = this._activeTarget !== this._targets[i] &&
-            scrollTop >= this._offsets[i] &&
-            (typeof this._offsets[i + 1] === 'undefined' ||
-                scrollTop < this._offsets[i + 1])
+    const offsetLength = this._offsets.length
+    for (let i = offsetLength; i--;) {
+      const isActiveTarget = this._activeTarget !== this._targets[i] &&
+          scrollTop >= this._offsets[i] &&
+          (typeof this._offsets[i + 1] === 'undefined' ||
+              scrollTop < this._offsets[i + 1])
 
-        if (isActiveTarget) {
-          this._activate(this._targets[i])
-        }
+      if (isActiveTarget) {
+        this._activate(this._targets[i])
       }
     }
+  }
 
-    _activate(target) {
-      this._activeTarget = target
+  _activate(target) {
+    this._activeTarget = target
 
-      this._clear()
+    this._clear()
 
-      let queries = this._selector.split(',')
-      // eslint-disable-next-line arrow-body-style
-      queries = queries.map((selector) => {
-        return `${selector}[data-target="${target}"],` +
-               `${selector}[href="${target}"]`
-      })
+    const queries = this._selector
+      .split(',')
+      .map((selector) => `${selector}[data-target="${target}"],${selector}[href="${target}"]`)
 
-      const $link = $([].slice.call(document.querySelectorAll(queries.join(','))))
-
-      if ($link.hasClass(ClassName.DROPDOWN_ITEM)) {
-        $link.closest(Selector.DROPDOWN).find(Selector.DROPDOWN_TOGGLE).addClass(ClassName.ACTIVE)
-        $link.addClass(ClassName.ACTIVE)
-      } else {
-        // Set triggered link as active
-        $link.addClass(ClassName.ACTIVE)
-        // Set triggered links parents as active
-        // With both <ul> and <nav> markup a parent is the previous sibling of any nav ancestor
-        $link.parents(Selector.NAV_LIST_GROUP).prev(`${Selector.NAV_LINKS}, ${Selector.LIST_ITEMS}`).addClass(ClassName.ACTIVE)
-        // Handle special case when .nav-link is inside .nav-item
-        $link.parents(Selector.NAV_LIST_GROUP).prev(Selector.NAV_ITEMS).children(Selector.NAV_LINKS).addClass(ClassName.ACTIVE)
-      }
+    const $link = $([].slice.call(document.querySelectorAll(queries.join(','))))
 
-      $(this._scrollElement).trigger(Event.ACTIVATE, {
-        relatedTarget: target
-      })
+    if ($link.hasClass(ClassName.DROPDOWN_ITEM)) {
+      $link.closest(Selector.DROPDOWN).find(Selector.DROPDOWN_TOGGLE).addClass(ClassName.ACTIVE)
+      $link.addClass(ClassName.ACTIVE)
+    } else {
+      // Set triggered link as active
+      $link.addClass(ClassName.ACTIVE)
+      // Set triggered links parents as active
+      // With both <ul> and <nav> markup a parent is the previous sibling of any nav ancestor
+      $link.parents(Selector.NAV_LIST_GROUP).prev(`${Selector.NAV_LINKS}, ${Selector.LIST_ITEMS}`).addClass(ClassName.ACTIVE)
+      // Handle special case when .nav-link is inside .nav-item
+      $link.parents(Selector.NAV_LIST_GROUP).prev(Selector.NAV_ITEMS).children(Selector.NAV_LINKS).addClass(ClassName.ACTIVE)
     }
 
-    _clear() {
-      const nodes = [].slice.call(document.querySelectorAll(this._selector))
-      $(nodes).filter(Selector.ACTIVE).removeClass(ClassName.ACTIVE)
-    }
+    $(this._scrollElement).trigger(Event.ACTIVATE, {
+      relatedTarget: target
+    })
+  }
 
-    // Static
+  _clear() {
+    [].slice.call(document.querySelectorAll(this._selector))
+      .filter((node) => node.classList.contains(ClassName.ACTIVE))
+      .forEach((node) => node.classList.remove(ClassName.ACTIVE))
+  }
 
-    static _jQueryInterface(config) {
-      return this.each(function () {
-        let data = $(this).data(DATA_KEY)
-        const _config = typeof config === 'object' && config
+  // Static
 
-        if (!data) {
-          data = new ScrollSpy(this, _config)
-          $(this).data(DATA_KEY, data)
-        }
+  static _jQueryInterface(config) {
+    return this.each(function () {
+      let data = $(this).data(DATA_KEY)
+      const _config = typeof config === 'object' && config
 
-        if (typeof config === 'string') {
-          if (typeof data[config] === 'undefined') {
-            throw new TypeError(`No method named "${config}"`)
-          }
-          data[config]()
+      if (!data) {
+        data = new ScrollSpy(this, _config)
+        $(this).data(DATA_KEY, data)
+      }
+
+      if (typeof config === 'string') {
+        if (typeof data[config] === 'undefined') {
+          throw new TypeError(`No method named "${config}"`)
         }
-      })
-    }
+        data[config]()
+      }
+    })
   }
+}
 
-  /**
-   * ------------------------------------------------------------------------
-   * Data Api implementation
-   * ------------------------------------------------------------------------
-   */
+/**
+ * ------------------------------------------------------------------------
+ * Data Api implementation
+ * ------------------------------------------------------------------------
+ */
 
-  $(window).on(Event.LOAD_DATA_API, () => {
-    const scrollSpys = [].slice.call(document.querySelectorAll(Selector.DATA_SPY))
+$(window).on(Event.LOAD_DATA_API, () => {
+  const scrollSpys = [].slice.call(document.querySelectorAll(Selector.DATA_SPY))
+  const scrollSpysLength = scrollSpys.length
 
-    const scrollSpysLength = scrollSpys.length
-    for (let i = scrollSpysLength; i--;) {
-      const $spy = $(scrollSpys[i])
-      ScrollSpy._jQueryInterface.call($spy, $spy.data())
-    }
-  })
-
-  /**
-   * ------------------------------------------------------------------------
-   * jQuery
-   * ------------------------------------------------------------------------
-   */
-
-  $.fn[NAME] = ScrollSpy._jQueryInterface
-  $.fn[NAME].Constructor = ScrollSpy
-  $.fn[NAME].noConflict = function () {
-    $.fn[NAME] = JQUERY_NO_CONFLICT
-    return ScrollSpy._jQueryInterface
+  for (let i = scrollSpysLength; i--;) {
+    const $spy = $(scrollSpys[i])
+    ScrollSpy._jQueryInterface.call($spy, $spy.data())
   }
+})
+
+/**
+ * ------------------------------------------------------------------------
+ * jQuery
+ * ------------------------------------------------------------------------
+ */
 
-  return ScrollSpy
-})($)
+$.fn[NAME] = ScrollSpy._jQueryInterface
+$.fn[NAME].Constructor = ScrollSpy
+$.fn[NAME].noConflict = () => {
+  $.fn[NAME] = JQUERY_NO_CONFLICT
+  return ScrollSpy._jQueryInterface
+}
 
 export default ScrollSpy
diff --git a/vendor/twbs/bootstrap/js/src/tab.js b/vendor/twbs/bootstrap/js/src/tab.js
index a91b088de..8421e0a43 100644
--- a/vendor/twbs/bootstrap/js/src/tab.js
+++ b/vendor/twbs/bootstrap/js/src/tab.js
@@ -1,264 +1,260 @@
-import $ from 'jquery'
-import Util from './util'
-
 /**
  * --------------------------------------------------------------------------
- * Bootstrap (v4.1.3): tab.js
+ * Bootstrap (v4.3.1): tab.js
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  * --------------------------------------------------------------------------
  */
 
-const Tab = (($) => {
-  /**
-   * ------------------------------------------------------------------------
-   * Constants
-   * ------------------------------------------------------------------------
-   */
-
-  const NAME               = 'tab'
-  const VERSION            = '4.1.3'
-  const DATA_KEY           = 'bs.tab'
-  const EVENT_KEY          = `.${DATA_KEY}`
-  const DATA_API_KEY       = '.data-api'
-  const JQUERY_NO_CONFLICT = $.fn[NAME]
-
-  const Event = {
-    HIDE           : `hide${EVENT_KEY}`,
-    HIDDEN         : `hidden${EVENT_KEY}`,
-    SHOW           : `show${EVENT_KEY}`,
-    SHOWN          : `shown${EVENT_KEY}`,
-    CLICK_DATA_API : `click${EVENT_KEY}${DATA_API_KEY}`
-  }
+import $ from 'jquery'
+import Util from './util'
+
+/**
+ * ------------------------------------------------------------------------
+ * Constants
+ * ------------------------------------------------------------------------
+ */
+
+const NAME               = 'tab'
+const VERSION            = '4.3.1'
+const DATA_KEY           = 'bs.tab'
+const EVENT_KEY          = `.${DATA_KEY}`
+const DATA_API_KEY       = '.data-api'
+const JQUERY_NO_CONFLICT = $.fn[NAME]
+
+const Event = {
+  HIDE           : `hide${EVENT_KEY}`,
+  HIDDEN         : `hidden${EVENT_KEY}`,
+  SHOW           : `show${EVENT_KEY}`,
+  SHOWN          : `shown${EVENT_KEY}`,
+  CLICK_DATA_API : `click${EVENT_KEY}${DATA_API_KEY}`
+}
+
+const ClassName = {
+  DROPDOWN_MENU : 'dropdown-menu',
+  ACTIVE        : 'active',
+  DISABLED      : 'disabled',
+  FADE          : 'fade',
+  SHOW          : 'show'
+}
+
+const Selector = {
+  DROPDOWN              : '.dropdown',
+  NAV_LIST_GROUP        : '.nav, .list-group',
+  ACTIVE                : '.active',
+  ACTIVE_UL             : '> li > .active',
+  DATA_TOGGLE           : '[data-toggle="tab"], [data-toggle="pill"], [data-toggle="list"]',
+  DROPDOWN_TOGGLE       : '.dropdown-toggle',
+  DROPDOWN_ACTIVE_CHILD : '> .dropdown-menu .active'
+}
+
+/**
+ * ------------------------------------------------------------------------
+ * Class Definition
+ * ------------------------------------------------------------------------
+ */
 
-  const ClassName = {
-    DROPDOWN_MENU : 'dropdown-menu',
-    ACTIVE        : 'active',
-    DISABLED      : 'disabled',
-    FADE          : 'fade',
-    SHOW          : 'show'
+class Tab {
+  constructor(element) {
+    this._element = element
   }
 
-  const Selector = {
-    DROPDOWN              : '.dropdown',
-    NAV_LIST_GROUP        : '.nav, .list-group',
-    ACTIVE                : '.active',
-    ACTIVE_UL             : '> li > .active',
-    DATA_TOGGLE           : '[data-toggle="tab"], [data-toggle="pill"], [data-toggle="list"]',
-    DROPDOWN_TOGGLE       : '.dropdown-toggle',
-    DROPDOWN_ACTIVE_CHILD : '> .dropdown-menu .active'
+  // Getters
+
+  static get VERSION() {
+    return VERSION
   }
 
-  /**
-   * ------------------------------------------------------------------------
-   * Class Definition
-   * ------------------------------------------------------------------------
-   */
+  // Public
 
-  class Tab {
-    constructor(element) {
-      this._element = element
+  show() {
+    if (this._element.parentNode &&
+        this._element.parentNode.nodeType === Node.ELEMENT_NODE &&
+        $(this._element).hasClass(ClassName.ACTIVE) ||
+        $(this._element).hasClass(ClassName.DISABLED)) {
+      return
     }
 
-    // Getters
+    let target
+    let previous
+    const listElement = $(this._element).closest(Selector.NAV_LIST_GROUP)[0]
+    const selector = Util.getSelectorFromElement(this._element)
 
-    static get VERSION() {
-      return VERSION
+    if (listElement) {
+      const itemSelector = listElement.nodeName === 'UL' || listElement.nodeName === 'OL' ? Selector.ACTIVE_UL : Selector.ACTIVE
+      previous = $.makeArray($(listElement).find(itemSelector))
+      previous = previous[previous.length - 1]
     }
 
-    // Public
+    const hideEvent = $.Event(Event.HIDE, {
+      relatedTarget: this._element
+    })
 
-    show() {
-      if (this._element.parentNode &&
-          this._element.parentNode.nodeType === Node.ELEMENT_NODE &&
-          $(this._element).hasClass(ClassName.ACTIVE) ||
-          $(this._element).hasClass(ClassName.DISABLED)) {
-        return
-      }
+    const showEvent = $.Event(Event.SHOW, {
+      relatedTarget: previous
+    })
+
+    if (previous) {
+      $(previous).trigger(hideEvent)
+    }
 
-      let target
-      let previous
-      const listElement = $(this._element).closest(Selector.NAV_LIST_GROUP)[0]
-      const selector = Util.getSelectorFromElement(this._element)
+    $(this._element).trigger(showEvent)
 
-      if (listElement) {
-        const itemSelector = listElement.nodeName === 'UL' ? Selector.ACTIVE_UL : Selector.ACTIVE
-        previous = $.makeArray($(listElement).find(itemSelector))
-        previous = previous[previous.length - 1]
-      }
+    if (showEvent.isDefaultPrevented() ||
+        hideEvent.isDefaultPrevented()) {
+      return
+    }
+
+    if (selector) {
+      target = document.querySelector(selector)
+    }
+
+    this._activate(
+      this._element,
+      listElement
+    )
 
-      const hideEvent = $.Event(Event.HIDE, {
+    const complete = () => {
+      const hiddenEvent = $.Event(Event.HIDDEN, {
         relatedTarget: this._element
       })
 
-      const showEvent = $.Event(Event.SHOW, {
+      const shownEvent = $.Event(Event.SHOWN, {
         relatedTarget: previous
       })
 
-      if (previous) {
-        $(previous).trigger(hideEvent)
-      }
-
-      $(this._element).trigger(showEvent)
+      $(previous).trigger(hiddenEvent)
+      $(this._element).trigger(shownEvent)
+    }
 
-      if (showEvent.isDefaultPrevented() ||
-         hideEvent.isDefaultPrevented()) {
-        return
-      }
+    if (target) {
+      this._activate(target, target.parentNode, complete)
+    } else {
+      complete()
+    }
+  }
 
-      if (selector) {
-        target = document.querySelector(selector)
-      }
+  dispose() {
+    $.removeData(this._element, DATA_KEY)
+    this._element = null
+  }
 
-      this._activate(
-        this._element,
-        listElement
-      )
+  // Private
+
+  _activate(element, container, callback) {
+    const activeElements = container && (container.nodeName === 'UL' || container.nodeName === 'OL')
+      ? $(container).find(Selector.ACTIVE_UL)
+      : $(container).children(Selector.ACTIVE)
+
+    const active = activeElements[0]
+    const isTransitioning = callback && (active && $(active).hasClass(ClassName.FADE))
+    const complete = () => this._transitionComplete(
+      element,
+      active,
+      callback
+    )
+
+    if (active && isTransitioning) {
+      const transitionDuration = Util.getTransitionDurationFromElement(active)
+
+      $(active)
+        .removeClass(ClassName.SHOW)
+        .one(Util.TRANSITION_END, complete)
+        .emulateTransitionEnd(transitionDuration)
+    } else {
+      complete()
+    }
+  }
 
-      const complete = () => {
-        const hiddenEvent = $.Event(Event.HIDDEN, {
-          relatedTarget: this._element
-        })
+  _transitionComplete(element, active, callback) {
+    if (active) {
+      $(active).removeClass(ClassName.ACTIVE)
 
-        const shownEvent = $.Event(Event.SHOWN, {
-          relatedTarget: previous
-        })
+      const dropdownChild = $(active.parentNode).find(
+        Selector.DROPDOWN_ACTIVE_CHILD
+      )[0]
 
-        $(previous).trigger(hiddenEvent)
-        $(this._element).trigger(shownEvent)
+      if (dropdownChild) {
+        $(dropdownChild).removeClass(ClassName.ACTIVE)
       }
 
-      if (target) {
-        this._activate(target, target.parentNode, complete)
-      } else {
-        complete()
+      if (active.getAttribute('role') === 'tab') {
+        active.setAttribute('aria-selected', false)
       }
     }
 
-    dispose() {
-      $.removeData(this._element, DATA_KEY)
-      this._element = null
+    $(element).addClass(ClassName.ACTIVE)
+    if (element.getAttribute('role') === 'tab') {
+      element.setAttribute('aria-selected', true)
     }
 
-    // Private
-
-    _activate(element, container, callback) {
-      let activeElements
-      if (container.nodeName === 'UL') {
-        activeElements = $(container).find(Selector.ACTIVE_UL)
-      } else {
-        activeElements = $(container).children(Selector.ACTIVE)
-      }
-
-      const active = activeElements[0]
-      const isTransitioning = callback &&
-        (active && $(active).hasClass(ClassName.FADE))
-
-      const complete = () => this._transitionComplete(
-        element,
-        active,
-        callback
-      )
+    Util.reflow(element)
 
-      if (active && isTransitioning) {
-        const transitionDuration = Util.getTransitionDurationFromElement(active)
-
-        $(active)
-          .one(Util.TRANSITION_END, complete)
-          .emulateTransitionEnd(transitionDuration)
-      } else {
-        complete()
-      }
+    if (element.classList.contains(ClassName.FADE)) {
+      element.classList.add(ClassName.SHOW)
     }
 
-    _transitionComplete(element, active, callback) {
-      if (active) {
-        $(active).removeClass(`${ClassName.SHOW} ${ClassName.ACTIVE}`)
+    if (element.parentNode && $(element.parentNode).hasClass(ClassName.DROPDOWN_MENU)) {
+      const dropdownElement = $(element).closest(Selector.DROPDOWN)[0]
 
-        const dropdownChild = $(active.parentNode).find(
-          Selector.DROPDOWN_ACTIVE_CHILD
-        )[0]
+      if (dropdownElement) {
+        const dropdownToggleList = [].slice.call(dropdownElement.querySelectorAll(Selector.DROPDOWN_TOGGLE))
 
-        if (dropdownChild) {
-          $(dropdownChild).removeClass(ClassName.ACTIVE)
-        }
-
-        if (active.getAttribute('role') === 'tab') {
-          active.setAttribute('aria-selected', false)
-        }
-      }
-
-      $(element).addClass(ClassName.ACTIVE)
-      if (element.getAttribute('role') === 'tab') {
-        element.setAttribute('aria-selected', true)
+        $(dropdownToggleList).addClass(ClassName.ACTIVE)
       }
 
-      Util.reflow(element)
-      $(element).addClass(ClassName.SHOW)
-
-      if (element.parentNode &&
-          $(element.parentNode).hasClass(ClassName.DROPDOWN_MENU)) {
-        const dropdownElement = $(element).closest(Selector.DROPDOWN)[0]
-        if (dropdownElement) {
-          const dropdownToggleList = [].slice.call(dropdownElement.querySelectorAll(Selector.DROPDOWN_TOGGLE))
-          $(dropdownToggleList).addClass(ClassName.ACTIVE)
-        }
-
-        element.setAttribute('aria-expanded', true)
-      }
+      element.setAttribute('aria-expanded', true)
+    }
 
-      if (callback) {
-        callback()
-      }
+    if (callback) {
+      callback()
     }
+  }
 
-    // Static
+  // Static
 
-    static _jQueryInterface(config) {
-      return this.each(function () {
-        const $this = $(this)
-        let data = $this.data(DATA_KEY)
+  static _jQueryInterface(config) {
+    return this.each(function () {
+      const $this = $(this)
+      let data = $this.data(DATA_KEY)
 
-        if (!data) {
-          data = new Tab(this)
-          $this.data(DATA_KEY, data)
-        }
+      if (!data) {
+        data = new Tab(this)
+        $this.data(DATA_KEY, data)
+      }
 
-        if (typeof config === 'string') {
-          if (typeof data[config] === 'undefined') {
-            throw new TypeError(`No method named "${config}"`)
-          }
-          data[config]()
+      if (typeof config === 'string') {
+        if (typeof data[config] === 'undefined') {
+          throw new TypeError(`No method named "${config}"`)
         }
-      })
-    }
+        data[config]()
+      }
+    })
   }
+}
 
-  /**
-   * ------------------------------------------------------------------------
-   * Data Api implementation
-   * ------------------------------------------------------------------------
-   */
+/**
+ * ------------------------------------------------------------------------
+ * Data Api implementation
+ * ------------------------------------------------------------------------
+ */
 
-  $(document)
-    .on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE, function (event) {
-      event.preventDefault()
-      Tab._jQueryInterface.call($(this), 'show')
-    })
+$(document)
+  .on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE, function (event) {
+    event.preventDefault()
+    Tab._jQueryInterface.call($(this), 'show')
+  })
 
-  /**
-   * ------------------------------------------------------------------------
-   * jQuery
-   * ------------------------------------------------------------------------
-   */
-
-  $.fn[NAME] = Tab._jQueryInterface
-  $.fn[NAME].Constructor = Tab
-  $.fn[NAME].noConflict = function () {
-    $.fn[NAME] = JQUERY_NO_CONFLICT
-    return Tab._jQueryInterface
-  }
+/**
+ * ------------------------------------------------------------------------
+ * jQuery
+ * ------------------------------------------------------------------------
+ */
 
-  return Tab
-})($)
+$.fn[NAME] = Tab._jQueryInterface
+$.fn[NAME].Constructor = Tab
+$.fn[NAME].noConflict = () => {
+  $.fn[NAME] = JQUERY_NO_CONFLICT
+  return Tab._jQueryInterface
+}
 
 export default Tab
diff --git a/vendor/twbs/bootstrap/js/src/toast.js b/vendor/twbs/bootstrap/js/src/toast.js
new file mode 100644
index 000000000..4aef2d40c
--- /dev/null
+++ b/vendor/twbs/bootstrap/js/src/toast.js
@@ -0,0 +1,227 @@
+/**
+ * --------------------------------------------------------------------------
+ * Bootstrap (v4.3.1): toast.js
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * --------------------------------------------------------------------------
+ */
+
+import $ from 'jquery'
+import Util from './util'
+
+/**
+ * ------------------------------------------------------------------------
+ * Constants
+ * ------------------------------------------------------------------------
+ */
+
+const NAME               = 'toast'
+const VERSION            = '4.3.1'
+const DATA_KEY           = 'bs.toast'
+const EVENT_KEY          = `.${DATA_KEY}`
+const JQUERY_NO_CONFLICT = $.fn[NAME]
+
+const Event = {
+  CLICK_DISMISS : `click.dismiss${EVENT_KEY}`,
+  HIDE          : `hide${EVENT_KEY}`,
+  HIDDEN        : `hidden${EVENT_KEY}`,
+  SHOW          : `show${EVENT_KEY}`,
+  SHOWN         : `shown${EVENT_KEY}`
+}
+
+const ClassName = {
+  FADE    : 'fade',
+  HIDE    : 'hide',
+  SHOW    : 'show',
+  SHOWING : 'showing'
+}
+
+const DefaultType = {
+  animation : 'boolean',
+  autohide  : 'boolean',
+  delay     : 'number'
+}
+
+const Default = {
+  animation : true,
+  autohide  : true,
+  delay     : 500
+}
+
+const Selector = {
+  DATA_DISMISS : '[data-dismiss="toast"]'
+}
+
+/**
+ * ------------------------------------------------------------------------
+ * Class Definition
+ * ------------------------------------------------------------------------
+ */
+
+class Toast {
+  constructor(element, config) {
+    this._element = element
+    this._config  = this._getConfig(config)
+    this._timeout = null
+    this._setListeners()
+  }
+
+  // Getters
+
+  static get VERSION() {
+    return VERSION
+  }
+
+  static get DefaultType() {
+    return DefaultType
+  }
+
+  static get Default() {
+    return Default
+  }
+
+  // Public
+
+  show() {
+    $(this._element).trigger(Event.SHOW)
+
+    if (this._config.animation) {
+      this._element.classList.add(ClassName.FADE)
+    }
+
+    const complete = () => {
+      this._element.classList.remove(ClassName.SHOWING)
+      this._element.classList.add(ClassName.SHOW)
+
+      $(this._element).trigger(Event.SHOWN)
+
+      if (this._config.autohide) {
+        this.hide()
+      }
+    }
+
+    this._element.classList.remove(ClassName.HIDE)
+    this._element.classList.add(ClassName.SHOWING)
+    if (this._config.animation) {
+      const transitionDuration = Util.getTransitionDurationFromElement(this._element)
+
+      $(this._element)
+        .one(Util.TRANSITION_END, complete)
+        .emulateTransitionEnd(transitionDuration)
+    } else {
+      complete()
+    }
+  }
+
+  hide(withoutTimeout) {
+    if (!this._element.classList.contains(ClassName.SHOW)) {
+      return
+    }
+
+    $(this._element).trigger(Event.HIDE)
+
+    if (withoutTimeout) {
+      this._close()
+    } else {
+      this._timeout = setTimeout(() => {
+        this._close()
+      }, this._config.delay)
+    }
+  }
+
+  dispose() {
+    clearTimeout(this._timeout)
+    this._timeout = null
+
+    if (this._element.classList.contains(ClassName.SHOW)) {
+      this._element.classList.remove(ClassName.SHOW)
+    }
+
+    $(this._element).off(Event.CLICK_DISMISS)
+
+    $.removeData(this._element, DATA_KEY)
+    this._element = null
+    this._config  = null
+  }
+
+  // Private
+
+  _getConfig(config) {
+    config = {
+      ...Default,
+      ...$(this._element).data(),
+      ...typeof config === 'object' && config ? config : {}
+    }
+
+    Util.typeCheckConfig(
+      NAME,
+      config,
+      this.constructor.DefaultType
+    )
+
+    return config
+  }
+
+  _setListeners() {
+    $(this._element).on(
+      Event.CLICK_DISMISS,
+      Selector.DATA_DISMISS,
+      () => this.hide(true)
+    )
+  }
+
+  _close() {
+    const complete = () => {
+      this._element.classList.add(ClassName.HIDE)
+      $(this._element).trigger(Event.HIDDEN)
+    }
+
+    this._element.classList.remove(ClassName.SHOW)
+    if (this._config.animation) {
+      const transitionDuration = Util.getTransitionDurationFromElement(this._element)
+
+      $(this._element)
+        .one(Util.TRANSITION_END, complete)
+        .emulateTransitionEnd(transitionDuration)
+    } else {
+      complete()
+    }
+  }
+
+  // Static
+
+  static _jQueryInterface(config) {
+    return this.each(function () {
+      const $element = $(this)
+      let data       = $element.data(DATA_KEY)
+      const _config  = typeof config === 'object' && config
+
+      if (!data) {
+        data = new Toast(this, _config)
+        $element.data(DATA_KEY, data)
+      }
+
+      if (typeof config === 'string') {
+        if (typeof data[config] === 'undefined') {
+          throw new TypeError(`No method named "${config}"`)
+        }
+
+        data[config](this)
+      }
+    })
+  }
+}
+
+/**
+ * ------------------------------------------------------------------------
+ * jQuery
+ * ------------------------------------------------------------------------
+ */
+
+$.fn[NAME]             = Toast._jQueryInterface
+$.fn[NAME].Constructor = Toast
+$.fn[NAME].noConflict  = () => {
+  $.fn[NAME] = JQUERY_NO_CONFLICT
+  return Toast._jQueryInterface
+}
+
+export default Toast
diff --git a/vendor/twbs/bootstrap/js/src/tools/sanitizer.js b/vendor/twbs/bootstrap/js/src/tools/sanitizer.js
new file mode 100644
index 000000000..ff78d06a7
--- /dev/null
+++ b/vendor/twbs/bootstrap/js/src/tools/sanitizer.js
@@ -0,0 +1,127 @@
+/**
+ * --------------------------------------------------------------------------
+ * Bootstrap (v4.3.1): tools/sanitizer.js
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * --------------------------------------------------------------------------
+ */
+
+const uriAttrs = [
+  'background',
+  'cite',
+  'href',
+  'itemtype',
+  'longdesc',
+  'poster',
+  'src',
+  'xlink:href'
+]
+
+const ARIA_ATTRIBUTE_PATTERN = /^aria-[\w-]*$/i
+
+export const DefaultWhitelist = {
+  // Global attributes allowed on any supplied element below.
+  '*': ['class', 'dir', 'id', 'lang', 'role', ARIA_ATTRIBUTE_PATTERN],
+  a: ['target', 'href', 'title', 'rel'],
+  area: [],
+  b: [],
+  br: [],
+  col: [],
+  code: [],
+  div: [],
+  em: [],
+  hr: [],
+  h1: [],
+  h2: [],
+  h3: [],
+  h4: [],
+  h5: [],
+  h6: [],
+  i: [],
+  img: ['src', 'alt', 'title', 'width', 'height'],
+  li: [],
+  ol: [],
+  p: [],
+  pre: [],
+  s: [],
+  small: [],
+  span: [],
+  sub: [],
+  sup: [],
+  strong: [],
+  u: [],
+  ul: []
+}
+
+/**
+ * A pattern that recognizes a commonly useful subset of URLs that are safe.
+ *
+ * Shoutout to Angular 7 https://github.com/angular/angular/blob/7.2.4/packages/core/src/sanitization/url_sanitizer.ts
+ */
+const SAFE_URL_PATTERN = /^(?:(?:https?|mailto|ftp|tel|file):|[^&:/?#]*(?:[/?#]|$))/gi
+
+/**
+ * A pattern that matches safe data URLs. Only matches image, video and audio types.
+ *
+ * Shoutout to Angular 7 https://github.com/angular/angular/blob/7.2.4/packages/core/src/sanitization/url_sanitizer.ts
+ */
+const DATA_URL_PATTERN = /^data:(?:image\/(?:bmp|gif|jpeg|jpg|png|tiff|webp)|video\/(?:mpeg|mp4|ogg|webm)|audio\/(?:mp3|oga|ogg|opus));base64,[a-z0-9+/]+=*$/i
+
+function allowedAttribute(attr, allowedAttributeList) {
+  const attrName = attr.nodeName.toLowerCase()
+
+  if (allowedAttributeList.indexOf(attrName) !== -1) {
+    if (uriAttrs.indexOf(attrName) !== -1) {
+      return Boolean(attr.nodeValue.match(SAFE_URL_PATTERN) || attr.nodeValue.match(DATA_URL_PATTERN))
+    }
+
+    return true
+  }
+
+  const regExp = allowedAttributeList.filter((attrRegex) => attrRegex instanceof RegExp)
+
+  // Check if a regular expression validates the attribute.
+  for (let i = 0, l = regExp.length; i < l; i++) {
+    if (attrName.match(regExp[i])) {
+      return true
+    }
+  }
+
+  return false
+}
+
+export function sanitizeHtml(unsafeHtml, whiteList, sanitizeFn) {
+  if (unsafeHtml.length === 0) {
+    return unsafeHtml
+  }
+
+  if (sanitizeFn && typeof sanitizeFn === 'function') {
+    return sanitizeFn(unsafeHtml)
+  }
+
+  const domParser = new window.DOMParser()
+  const createdDocument = domParser.parseFromString(unsafeHtml, 'text/html')
+  const whitelistKeys = Object.keys(whiteList)
+  const elements = [].slice.call(createdDocument.body.querySelectorAll('*'))
+
+  for (let i = 0, len = elements.length; i < len; i++) {
+    const el = elements[i]
+    const elName = el.nodeName.toLowerCase()
+
+    if (whitelistKeys.indexOf(el.nodeName.toLowerCase()) === -1) {
+      el.parentNode.removeChild(el)
+
+      continue
+    }
+
+    const attributeList = [].slice.call(el.attributes)
+    const whitelistedAttributes = [].concat(whiteList['*'] || [], whiteList[elName] || [])
+
+    attributeList.forEach((attr) => {
+      if (!allowedAttribute(attr, whitelistedAttributes)) {
+        el.removeAttribute(attr.nodeName)
+      }
+    })
+  }
+
+  return createdDocument.body.innerHTML
+}
diff --git a/vendor/twbs/bootstrap/js/src/tooltip.js b/vendor/twbs/bootstrap/js/src/tooltip.js
index 72d9ba177..81a2dedc6 100644
--- a/vendor/twbs/bootstrap/js/src/tooltip.js
+++ b/vendor/twbs/bootstrap/js/src/tooltip.js
@@ -1,725 +1,785 @@
-import $ from 'jquery'
-import Popper from 'popper.js'
-import Util from './util'
-
 /**
  * --------------------------------------------------------------------------
- * Bootstrap (v4.1.3): tooltip.js
+ * Bootstrap (v4.3.1): tooltip.js
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  * --------------------------------------------------------------------------
  */
 
-const Tooltip = (($) => {
-  /**
-   * ------------------------------------------------------------------------
-   * Constants
-   * ------------------------------------------------------------------------
-   */
-
-  const NAME               = 'tooltip'
-  const VERSION            = '4.1.3'
-  const DATA_KEY           = 'bs.tooltip'
-  const EVENT_KEY          = `.${DATA_KEY}`
-  const JQUERY_NO_CONFLICT = $.fn[NAME]
-  const CLASS_PREFIX       = 'bs-tooltip'
-  const BSCLS_PREFIX_REGEX = new RegExp(`(^|\\s)${CLASS_PREFIX}\\S+`, 'g')
-
-  const DefaultType = {
-    animation           : 'boolean',
-    template            : 'string',
-    title               : '(string|element|function)',
-    trigger             : 'string',
-    delay               : '(number|object)',
-    html                : 'boolean',
-    selector            : '(string|boolean)',
-    placement           : '(string|function)',
-    offset              : '(number|string)',
-    container           : '(string|element|boolean)',
-    fallbackPlacement   : '(string|array)',
-    boundary            : '(string|element)'
-  }
-
-  const AttachmentMap = {
-    AUTO   : 'auto',
-    TOP    : 'top',
-    RIGHT  : 'right',
-    BOTTOM : 'bottom',
-    LEFT   : 'left'
-  }
-
-  const Default = {
-    animation           : true,
-    template            : '<div class="tooltip" role="tooltip">' +
-                        '<div class="arrow"></div>' +
-                        '<div class="tooltip-inner"></div></div>',
-    trigger             : 'hover focus',
-    title               : '',
-    delay               : 0,
-    html                : false,
-    selector            : false,
-    placement           : 'top',
-    offset              : 0,
-    container           : false,
-    fallbackPlacement   : 'flip',
-    boundary            : 'scrollParent'
-  }
-
-  const HoverState = {
-    SHOW : 'show',
-    OUT  : 'out'
-  }
-
-  const Event = {
-    HIDE       : `hide${EVENT_KEY}`,
-    HIDDEN     : `hidden${EVENT_KEY}`,
-    SHOW       : `show${EVENT_KEY}`,
-    SHOWN      : `shown${EVENT_KEY}`,
-    INSERTED   : `inserted${EVENT_KEY}`,
-    CLICK      : `click${EVENT_KEY}`,
-    FOCUSIN    : `focusin${EVENT_KEY}`,
-    FOCUSOUT   : `focusout${EVENT_KEY}`,
-    MOUSEENTER : `mouseenter${EVENT_KEY}`,
-    MOUSELEAVE : `mouseleave${EVENT_KEY}`
-  }
-
-  const ClassName = {
-    FADE : 'fade',
-    SHOW : 'show'
-  }
-
-  const Selector = {
-    TOOLTIP       : '.tooltip',
-    TOOLTIP_INNER : '.tooltip-inner',
-    ARROW         : '.arrow'
-  }
-
-  const Trigger = {
-    HOVER  : 'hover',
-    FOCUS  : 'focus',
-    CLICK  : 'click',
-    MANUAL : 'manual'
-  }
-
-
-  /**
-   * ------------------------------------------------------------------------
-   * Class Definition
-   * ------------------------------------------------------------------------
-   */
-
-  class Tooltip {
-    constructor(element, config) {
-      /**
-       * Check for Popper dependency
-       * Popper - https://popper.js.org
-       */
-      if (typeof Popper === 'undefined') {
-        throw new TypeError('Bootstrap tooltips require Popper.js (https://popper.js.org)')
-      }
+import {
+  DefaultWhitelist,
+  sanitizeHtml
+} from './tools/sanitizer'
+import $ from 'jquery'
+import Popper from 'popper.js'
+import Util from './util'
 
-      // private
-      this._isEnabled     = true
-      this._timeout       = 0
-      this._hoverState    = ''
-      this._activeTrigger = {}
-      this._popper        = null
+/**
+ * ------------------------------------------------------------------------
+ * Constants
+ * ------------------------------------------------------------------------
+ */
 
-      // Protected
-      this.element = element
-      this.config  = this._getConfig(config)
-      this.tip     = null
+const NAME                  = 'tooltip'
+const VERSION               = '4.3.1'
+const DATA_KEY              = 'bs.tooltip'
+const EVENT_KEY             = `.${DATA_KEY}`
+const JQUERY_NO_CONFLICT    = $.fn[NAME]
+const CLASS_PREFIX          = 'bs-tooltip'
+const BSCLS_PREFIX_REGEX    = new RegExp(`(^|\\s)${CLASS_PREFIX}\\S+`, 'g')
+const DISALLOWED_ATTRIBUTES = ['sanitize', 'whiteList', 'sanitizeFn']
+
+const DefaultType = {
+  animation         : 'boolean',
+  template          : 'string',
+  title             : '(string|element|function)',
+  trigger           : 'string',
+  delay             : '(number|object)',
+  html              : 'boolean',
+  selector          : '(string|boolean)',
+  placement         : '(string|function)',
+  offset            : '(number|string|function)',
+  container         : '(string|element|boolean)',
+  fallbackPlacement : '(string|array)',
+  boundary          : '(string|element)',
+  sanitize          : 'boolean',
+  sanitizeFn        : '(null|function)',
+  whiteList         : 'object'
+}
+
+const AttachmentMap = {
+  AUTO   : 'auto',
+  TOP    : 'top',
+  RIGHT  : 'right',
+  BOTTOM : 'bottom',
+  LEFT   : 'left'
+}
+
+const Default = {
+  animation         : true,
+  template          : '<div class="tooltip" role="tooltip">' +
+                    '<div class="arrow"></div>' +
+                    '<div class="tooltip-inner"></div></div>',
+  trigger           : 'hover focus',
+  title             : '',
+  delay             : 0,
+  html              : false,
+  selector          : false,
+  placement         : 'top',
+  offset            : 0,
+  container         : false,
+  fallbackPlacement : 'flip',
+  boundary          : 'scrollParent',
+  sanitize          : true,
+  sanitizeFn        : null,
+  whiteList         : DefaultWhitelist
+}
+
+const HoverState = {
+  SHOW : 'show',
+  OUT  : 'out'
+}
+
+const Event = {
+  HIDE       : `hide${EVENT_KEY}`,
+  HIDDEN     : `hidden${EVENT_KEY}`,
+  SHOW       : `show${EVENT_KEY}`,
+  SHOWN      : `shown${EVENT_KEY}`,
+  INSERTED   : `inserted${EVENT_KEY}`,
+  CLICK      : `click${EVENT_KEY}`,
+  FOCUSIN    : `focusin${EVENT_KEY}`,
+  FOCUSOUT   : `focusout${EVENT_KEY}`,
+  MOUSEENTER : `mouseenter${EVENT_KEY}`,
+  MOUSELEAVE : `mouseleave${EVENT_KEY}`
+}
+
+const ClassName = {
+  FADE : 'fade',
+  SHOW : 'show'
+}
+
+const Selector = {
+  TOOLTIP       : '.tooltip',
+  TOOLTIP_INNER : '.tooltip-inner',
+  ARROW         : '.arrow'
+}
+
+const Trigger = {
+  HOVER  : 'hover',
+  FOCUS  : 'focus',
+  CLICK  : 'click',
+  MANUAL : 'manual'
+}
 
-      this._setListeners()
-    }
 
-    // Getters
+/**
+ * ------------------------------------------------------------------------
+ * Class Definition
+ * ------------------------------------------------------------------------
+ */
 
-    static get VERSION() {
-      return VERSION
+class Tooltip {
+  constructor(element, config) {
+    /**
+     * Check for Popper dependency
+     * Popper - https://popper.js.org
+     */
+    if (typeof Popper === 'undefined') {
+      throw new TypeError('Bootstrap\'s tooltips require Popper.js (https://popper.js.org/)')
     }
 
-    static get Default() {
-      return Default
-    }
+    // private
+    this._isEnabled     = true
+    this._timeout       = 0
+    this._hoverState    = ''
+    this._activeTrigger = {}
+    this._popper        = null
 
-    static get NAME() {
-      return NAME
-    }
+    // Protected
+    this.element = element
+    this.config  = this._getConfig(config)
+    this.tip     = null
 
-    static get DATA_KEY() {
-      return DATA_KEY
-    }
+    this._setListeners()
+  }
 
-    static get Event() {
-      return Event
-    }
+  // Getters
 
-    static get EVENT_KEY() {
-      return EVENT_KEY
-    }
+  static get VERSION() {
+    return VERSION
+  }
 
-    static get DefaultType() {
-      return DefaultType
-    }
+  static get Default() {
+    return Default
+  }
 
-    // Public
+  static get NAME() {
+    return NAME
+  }
 
-    enable() {
-      this._isEnabled = true
-    }
+  static get DATA_KEY() {
+    return DATA_KEY
+  }
 
-    disable() {
-      this._isEnabled = false
-    }
+  static get Event() {
+    return Event
+  }
 
-    toggleEnabled() {
-      this._isEnabled = !this._isEnabled
-    }
+  static get EVENT_KEY() {
+    return EVENT_KEY
+  }
 
-    toggle(event) {
-      if (!this._isEnabled) {
-        return
-      }
+  static get DefaultType() {
+    return DefaultType
+  }
 
-      if (event) {
-        const dataKey = this.constructor.DATA_KEY
-        let context = $(event.currentTarget).data(dataKey)
+  // Public
 
-        if (!context) {
-          context = new this.constructor(
-            event.currentTarget,
-            this._getDelegateConfig()
-          )
-          $(event.currentTarget).data(dataKey, context)
-        }
+  enable() {
+    this._isEnabled = true
+  }
 
-        context._activeTrigger.click = !context._activeTrigger.click
+  disable() {
+    this._isEnabled = false
+  }
 
-        if (context._isWithActiveTrigger()) {
-          context._enter(null, context)
-        } else {
-          context._leave(null, context)
-        }
-      } else {
-        if ($(this.getTipElement()).hasClass(ClassName.SHOW)) {
-          this._leave(null, this)
-          return
-        }
+  toggleEnabled() {
+    this._isEnabled = !this._isEnabled
+  }
 
-        this._enter(null, this)
-      }
+  toggle(event) {
+    if (!this._isEnabled) {
+      return
     }
 
-    dispose() {
-      clearTimeout(this._timeout)
+    if (event) {
+      const dataKey = this.constructor.DATA_KEY
+      let context = $(event.currentTarget).data(dataKey)
 
-      $.removeData(this.element, this.constructor.DATA_KEY)
+      if (!context) {
+        context = new this.constructor(
+          event.currentTarget,
+          this._getDelegateConfig()
+        )
+        $(event.currentTarget).data(dataKey, context)
+      }
 
-      $(this.element).off(this.constructor.EVENT_KEY)
-      $(this.element).closest('.modal').off('hide.bs.modal')
+      context._activeTrigger.click = !context._activeTrigger.click
 
-      if (this.tip) {
-        $(this.tip).remove()
+      if (context._isWithActiveTrigger()) {
+        context._enter(null, context)
+      } else {
+        context._leave(null, context)
       }
-
-      this._isEnabled     = null
-      this._timeout       = null
-      this._hoverState    = null
-      this._activeTrigger = null
-      if (this._popper !== null) {
-        this._popper.destroy()
+    } else {
+      if ($(this.getTipElement()).hasClass(ClassName.SHOW)) {
+        this._leave(null, this)
+        return
       }
 
-      this._popper = null
-      this.element = null
-      this.config  = null
-      this.tip     = null
+      this._enter(null, this)
     }
+  }
 
-    show() {
-      if ($(this.element).css('display') === 'none') {
-        throw new Error('Please use show on visible elements')
-      }
+  dispose() {
+    clearTimeout(this._timeout)
 
-      const showEvent = $.Event(this.constructor.Event.SHOW)
-      if (this.isWithContent() && this._isEnabled) {
-        $(this.element).trigger(showEvent)
+    $.removeData(this.element, this.constructor.DATA_KEY)
 
-        const isInTheDom = $.contains(
-          this.element.ownerDocument.documentElement,
-          this.element
-        )
+    $(this.element).off(this.constructor.EVENT_KEY)
+    $(this.element).closest('.modal').off('hide.bs.modal')
 
-        if (showEvent.isDefaultPrevented() || !isInTheDom) {
-          return
-        }
+    if (this.tip) {
+      $(this.tip).remove()
+    }
 
-        const tip   = this.getTipElement()
-        const tipId = Util.getUID(this.constructor.NAME)
+    this._isEnabled     = null
+    this._timeout       = null
+    this._hoverState    = null
+    this._activeTrigger = null
+    if (this._popper !== null) {
+      this._popper.destroy()
+    }
 
-        tip.setAttribute('id', tipId)
-        this.element.setAttribute('aria-describedby', tipId)
+    this._popper = null
+    this.element = null
+    this.config  = null
+    this.tip     = null
+  }
 
-        this.setContent()
+  show() {
+    if ($(this.element).css('display') === 'none') {
+      throw new Error('Please use show on visible elements')
+    }
 
-        if (this.config.animation) {
-          $(tip).addClass(ClassName.FADE)
-        }
+    const showEvent = $.Event(this.constructor.Event.SHOW)
+    if (this.isWithContent() && this._isEnabled) {
+      $(this.element).trigger(showEvent)
 
-        const placement  = typeof this.config.placement === 'function'
-          ? this.config.placement.call(this, tip, this.element)
-          : this.config.placement
+      const shadowRoot = Util.findShadowRoot(this.element)
+      const isInTheDom = $.contains(
+        shadowRoot !== null ? shadowRoot : this.element.ownerDocument.documentElement,
+        this.element
+      )
 
-        const attachment = this._getAttachment(placement)
-        this.addAttachmentClass(attachment)
+      if (showEvent.isDefaultPrevented() || !isInTheDom) {
+        return
+      }
 
-        const container = this.config.container === false ? document.body : $(document).find(this.config.container)
+      const tip   = this.getTipElement()
+      const tipId = Util.getUID(this.constructor.NAME)
 
-        $(tip).data(this.constructor.DATA_KEY, this)
+      tip.setAttribute('id', tipId)
+      this.element.setAttribute('aria-describedby', tipId)
 
-        if (!$.contains(this.element.ownerDocument.documentElement, this.tip)) {
-          $(tip).appendTo(container)
-        }
+      this.setContent()
 
-        $(this.element).trigger(this.constructor.Event.INSERTED)
-
-        this._popper = new Popper(this.element, tip, {
-          placement: attachment,
-          modifiers: {
-            offset: {
-              offset: this.config.offset
-            },
-            flip: {
-              behavior: this.config.fallbackPlacement
-            },
-            arrow: {
-              element: Selector.ARROW
-            },
-            preventOverflow: {
-              boundariesElement: this.config.boundary
-            }
-          },
-          onCreate: (data) => {
-            if (data.originalPlacement !== data.placement) {
-              this._handlePopperPlacementChange(data)
-            }
-          },
-          onUpdate: (data) => {
-            this._handlePopperPlacementChange(data)
-          }
-        })
+      if (this.config.animation) {
+        $(tip).addClass(ClassName.FADE)
+      }
 
-        $(tip).addClass(ClassName.SHOW)
+      const placement  = typeof this.config.placement === 'function'
+        ? this.config.placement.call(this, tip, this.element)
+        : this.config.placement
 
-        // If this is a touch-enabled device we add extra
-        // empty mouseover listeners to the body's immediate children;
-        // only needed because of broken event delegation on iOS
-        // https://www.quirksmode.org/blog/archives/2014/02/mouse_event_bub.html
-        if ('ontouchstart' in document.documentElement) {
-          $(document.body).children().on('mouseover', null, $.noop)
-        }
+      const attachment = this._getAttachment(placement)
+      this.addAttachmentClass(attachment)
 
-        const complete = () => {
-          if (this.config.animation) {
-            this._fixTransition()
-          }
-          const prevHoverState = this._hoverState
-          this._hoverState     = null
+      const container = this._getContainer()
+      $(tip).data(this.constructor.DATA_KEY, this)
+
+      if (!$.contains(this.element.ownerDocument.documentElement, this.tip)) {
+        $(tip).appendTo(container)
+      }
 
-          $(this.element).trigger(this.constructor.Event.SHOWN)
+      $(this.element).trigger(this.constructor.Event.INSERTED)
 
-          if (prevHoverState === HoverState.OUT) {
-            this._leave(null, this)
+      this._popper = new Popper(this.element, tip, {
+        placement: attachment,
+        modifiers: {
+          offset: this._getOffset(),
+          flip: {
+            behavior: this.config.fallbackPlacement
+          },
+          arrow: {
+            element: Selector.ARROW
+          },
+          preventOverflow: {
+            boundariesElement: this.config.boundary
           }
-        }
+        },
+        onCreate: (data) => {
+          if (data.originalPlacement !== data.placement) {
+            this._handlePopperPlacementChange(data)
+          }
+        },
+        onUpdate: (data) => this._handlePopperPlacementChange(data)
+      })
 
-        if ($(this.tip).hasClass(ClassName.FADE)) {
-          const transitionDuration = Util.getTransitionDurationFromElement(this.tip)
+      $(tip).addClass(ClassName.SHOW)
 
-          $(this.tip)
-            .one(Util.TRANSITION_END, complete)
-            .emulateTransitionEnd(transitionDuration)
-        } else {
-          complete()
-        }
+      // If this is a touch-enabled device we add extra
+      // empty mouseover listeners to the body's immediate children;
+      // only needed because of broken event delegation on iOS
+      // https://www.quirksmode.org/blog/archives/2014/02/mouse_event_bub.html
+      if ('ontouchstart' in document.documentElement) {
+        $(document.body).children().on('mouseover', null, $.noop)
       }
-    }
 
-    hide(callback) {
-      const tip       = this.getTipElement()
-      const hideEvent = $.Event(this.constructor.Event.HIDE)
       const complete = () => {
-        if (this._hoverState !== HoverState.SHOW && tip.parentNode) {
-          tip.parentNode.removeChild(tip)
+        if (this.config.animation) {
+          this._fixTransition()
         }
+        const prevHoverState = this._hoverState
+        this._hoverState     = null
 
-        this._cleanTipClass()
-        this.element.removeAttribute('aria-describedby')
-        $(this.element).trigger(this.constructor.Event.HIDDEN)
-        if (this._popper !== null) {
-          this._popper.destroy()
-        }
+        $(this.element).trigger(this.constructor.Event.SHOWN)
 
-        if (callback) {
-          callback()
+        if (prevHoverState === HoverState.OUT) {
+          this._leave(null, this)
         }
       }
 
-      $(this.element).trigger(hideEvent)
-
-      if (hideEvent.isDefaultPrevented()) {
-        return
-      }
-
-      $(tip).removeClass(ClassName.SHOW)
-
-      // If this is a touch-enabled device we remove the extra
-      // empty mouseover listeners we added for iOS support
-      if ('ontouchstart' in document.documentElement) {
-        $(document.body).children().off('mouseover', null, $.noop)
-      }
-
-      this._activeTrigger[Trigger.CLICK] = false
-      this._activeTrigger[Trigger.FOCUS] = false
-      this._activeTrigger[Trigger.HOVER] = false
-
       if ($(this.tip).hasClass(ClassName.FADE)) {
-        const transitionDuration = Util.getTransitionDurationFromElement(tip)
+        const transitionDuration = Util.getTransitionDurationFromElement(this.tip)
 
-        $(tip)
+        $(this.tip)
           .one(Util.TRANSITION_END, complete)
           .emulateTransitionEnd(transitionDuration)
       } else {
         complete()
       }
-
-      this._hoverState = ''
     }
+  }
 
-    update() {
+  hide(callback) {
+    const tip       = this.getTipElement()
+    const hideEvent = $.Event(this.constructor.Event.HIDE)
+    const complete = () => {
+      if (this._hoverState !== HoverState.SHOW && tip.parentNode) {
+        tip.parentNode.removeChild(tip)
+      }
+
+      this._cleanTipClass()
+      this.element.removeAttribute('aria-describedby')
+      $(this.element).trigger(this.constructor.Event.HIDDEN)
       if (this._popper !== null) {
-        this._popper.scheduleUpdate()
+        this._popper.destroy()
+      }
+
+      if (callback) {
+        callback()
       }
     }
 
-    // Protected
+    $(this.element).trigger(hideEvent)
 
-    isWithContent() {
-      return Boolean(this.getTitle())
+    if (hideEvent.isDefaultPrevented()) {
+      return
     }
 
-    addAttachmentClass(attachment) {
-      $(this.getTipElement()).addClass(`${CLASS_PREFIX}-${attachment}`)
+    $(tip).removeClass(ClassName.SHOW)
+
+    // If this is a touch-enabled device we remove the extra
+    // empty mouseover listeners we added for iOS support
+    if ('ontouchstart' in document.documentElement) {
+      $(document.body).children().off('mouseover', null, $.noop)
     }
 
-    getTipElement() {
-      this.tip = this.tip || $(this.config.template)[0]
-      return this.tip
+    this._activeTrigger[Trigger.CLICK] = false
+    this._activeTrigger[Trigger.FOCUS] = false
+    this._activeTrigger[Trigger.HOVER] = false
+
+    if ($(this.tip).hasClass(ClassName.FADE)) {
+      const transitionDuration = Util.getTransitionDurationFromElement(tip)
+
+      $(tip)
+        .one(Util.TRANSITION_END, complete)
+        .emulateTransitionEnd(transitionDuration)
+    } else {
+      complete()
     }
 
-    setContent() {
-      const tip = this.getTipElement()
-      this.setElementContent($(tip.querySelectorAll(Selector.TOOLTIP_INNER)), this.getTitle())
-      $(tip).removeClass(`${ClassName.FADE} ${ClassName.SHOW}`)
+    this._hoverState = ''
+  }
+
+  update() {
+    if (this._popper !== null) {
+      this._popper.scheduleUpdate()
     }
+  }
 
-    setElementContent($element, content) {
-      const html = this.config.html
-      if (typeof content === 'object' && (content.nodeType || content.jquery)) {
-        // Content is a DOM node or a jQuery
-        if (html) {
-          if (!$(content).parent().is($element)) {
-            $element.empty().append(content)
-          }
-        } else {
-          $element.text($(content).text())
+  // Protected
+
+  isWithContent() {
+    return Boolean(this.getTitle())
+  }
+
+  addAttachmentClass(attachment) {
+    $(this.getTipElement()).addClass(`${CLASS_PREFIX}-${attachment}`)
+  }
+
+  getTipElement() {
+    this.tip = this.tip || $(this.config.template)[0]
+    return this.tip
+  }
+
+  setContent() {
+    const tip = this.getTipElement()
+    this.setElementContent($(tip.querySelectorAll(Selector.TOOLTIP_INNER)), this.getTitle())
+    $(tip).removeClass(`${ClassName.FADE} ${ClassName.SHOW}`)
+  }
+
+  setElementContent($element, content) {
+    if (typeof content === 'object' && (content.nodeType || content.jquery)) {
+      // Content is a DOM node or a jQuery
+      if (this.config.html) {
+        if (!$(content).parent().is($element)) {
+          $element.empty().append(content)
         }
       } else {
-        $element[html ? 'html' : 'text'](content)
+        $element.text($(content).text())
       }
-    }
 
-    getTitle() {
-      let title = this.element.getAttribute('data-original-title')
+      return
+    }
 
-      if (!title) {
-        title = typeof this.config.title === 'function'
-          ? this.config.title.call(this.element)
-          : this.config.title
+    if (this.config.html) {
+      if (this.config.sanitize) {
+        content = sanitizeHtml(content, this.config.whiteList, this.config.sanitizeFn)
       }
 
-      return title
+      $element.html(content)
+    } else {
+      $element.text(content)
     }
+  }
 
-    // Private
+  getTitle() {
+    let title = this.element.getAttribute('data-original-title')
 
-    _getAttachment(placement) {
-      return AttachmentMap[placement.toUpperCase()]
+    if (!title) {
+      title = typeof this.config.title === 'function'
+        ? this.config.title.call(this.element)
+        : this.config.title
     }
 
-    _setListeners() {
-      const triggers = this.config.trigger.split(' ')
+    return title
+  }
 
-      triggers.forEach((trigger) => {
-        if (trigger === 'click') {
-          $(this.element).on(
-            this.constructor.Event.CLICK,
-            this.config.selector,
-            (event) => this.toggle(event)
-          )
-        } else if (trigger !== Trigger.MANUAL) {
-          const eventIn = trigger === Trigger.HOVER
-            ? this.constructor.Event.MOUSEENTER
-            : this.constructor.Event.FOCUSIN
-          const eventOut = trigger === Trigger.HOVER
-            ? this.constructor.Event.MOUSELEAVE
-            : this.constructor.Event.FOCUSOUT
-
-          $(this.element)
-            .on(
-              eventIn,
-              this.config.selector,
-              (event) => this._enter(event)
-            )
-            .on(
-              eventOut,
-              this.config.selector,
-              (event) => this._leave(event)
-            )
-        }
+  // Private
 
-        $(this.element).closest('.modal').on(
-          'hide.bs.modal',
-          () => this.hide()
-        )
-      })
+  _getOffset() {
+    const offset = {}
 
-      if (this.config.selector) {
-        this.config = {
-          ...this.config,
-          trigger: 'manual',
-          selector: ''
+    if (typeof this.config.offset === 'function') {
+      offset.fn = (data) => {
+        data.offsets = {
+          ...data.offsets,
+          ...this.config.offset(data.offsets, this.element) || {}
         }
-      } else {
-        this._fixTitle()
+
+        return data
       }
+    } else {
+      offset.offset = this.config.offset
     }
 
-    _fixTitle() {
-      const titleType = typeof this.element.getAttribute('data-original-title')
-      if (this.element.getAttribute('title') ||
-         titleType !== 'string') {
-        this.element.setAttribute(
-          'data-original-title',
-          this.element.getAttribute('title') || ''
-        )
-        this.element.setAttribute('title', '')
-      }
+    return offset
+  }
+
+  _getContainer() {
+    if (this.config.container === false) {
+      return document.body
     }
 
-    _enter(event, context) {
-      const dataKey = this.constructor.DATA_KEY
+    if (Util.isElement(this.config.container)) {
+      return $(this.config.container)
+    }
 
-      context = context || $(event.currentTarget).data(dataKey)
+    return $(document).find(this.config.container)
+  }
 
-      if (!context) {
-        context = new this.constructor(
-          event.currentTarget,
-          this._getDelegateConfig()
+  _getAttachment(placement) {
+    return AttachmentMap[placement.toUpperCase()]
+  }
+
+  _setListeners() {
+    const triggers = this.config.trigger.split(' ')
+
+    triggers.forEach((trigger) => {
+      if (trigger === 'click') {
+        $(this.element).on(
+          this.constructor.Event.CLICK,
+          this.config.selector,
+          (event) => this.toggle(event)
         )
-        $(event.currentTarget).data(dataKey, context)
+      } else if (trigger !== Trigger.MANUAL) {
+        const eventIn = trigger === Trigger.HOVER
+          ? this.constructor.Event.MOUSEENTER
+          : this.constructor.Event.FOCUSIN
+        const eventOut = trigger === Trigger.HOVER
+          ? this.constructor.Event.MOUSELEAVE
+          : this.constructor.Event.FOCUSOUT
+
+        $(this.element)
+          .on(
+            eventIn,
+            this.config.selector,
+            (event) => this._enter(event)
+          )
+          .on(
+            eventOut,
+            this.config.selector,
+            (event) => this._leave(event)
+          )
       }
+    })
 
-      if (event) {
-        context._activeTrigger[
-          event.type === 'focusin' ? Trigger.FOCUS : Trigger.HOVER
-        ] = true
+    $(this.element).closest('.modal').on(
+      'hide.bs.modal',
+      () => {
+        if (this.element) {
+          this.hide()
+        }
       }
+    )
 
-      if ($(context.getTipElement()).hasClass(ClassName.SHOW) ||
-         context._hoverState === HoverState.SHOW) {
-        context._hoverState = HoverState.SHOW
-        return
+    if (this.config.selector) {
+      this.config = {
+        ...this.config,
+        trigger: 'manual',
+        selector: ''
       }
+    } else {
+      this._fixTitle()
+    }
+  }
 
-      clearTimeout(context._timeout)
+  _fixTitle() {
+    const titleType = typeof this.element.getAttribute('data-original-title')
 
-      context._hoverState = HoverState.SHOW
+    if (this.element.getAttribute('title') || titleType !== 'string') {
+      this.element.setAttribute(
+        'data-original-title',
+        this.element.getAttribute('title') || ''
+      )
 
-      if (!context.config.delay || !context.config.delay.show) {
-        context.show()
-        return
-      }
+      this.element.setAttribute('title', '')
+    }
+  }
 
-      context._timeout = setTimeout(() => {
-        if (context._hoverState === HoverState.SHOW) {
-          context.show()
-        }
-      }, context.config.delay.show)
+  _enter(event, context) {
+    const dataKey = this.constructor.DATA_KEY
+    context = context || $(event.currentTarget).data(dataKey)
+
+    if (!context) {
+      context = new this.constructor(
+        event.currentTarget,
+        this._getDelegateConfig()
+      )
+      $(event.currentTarget).data(dataKey, context)
     }
 
-    _leave(event, context) {
-      const dataKey = this.constructor.DATA_KEY
+    if (event) {
+      context._activeTrigger[
+        event.type === 'focusin' ? Trigger.FOCUS : Trigger.HOVER
+      ] = true
+    }
 
-      context = context || $(event.currentTarget).data(dataKey)
+    if ($(context.getTipElement()).hasClass(ClassName.SHOW) || context._hoverState === HoverState.SHOW) {
+      context._hoverState = HoverState.SHOW
+      return
+    }
 
-      if (!context) {
-        context = new this.constructor(
-          event.currentTarget,
-          this._getDelegateConfig()
-        )
-        $(event.currentTarget).data(dataKey, context)
-      }
+    clearTimeout(context._timeout)
 
-      if (event) {
-        context._activeTrigger[
-          event.type === 'focusout' ? Trigger.FOCUS : Trigger.HOVER
-        ] = false
-      }
+    context._hoverState = HoverState.SHOW
 
-      if (context._isWithActiveTrigger()) {
-        return
+    if (!context.config.delay || !context.config.delay.show) {
+      context.show()
+      return
+    }
+
+    context._timeout = setTimeout(() => {
+      if (context._hoverState === HoverState.SHOW) {
+        context.show()
       }
+    }, context.config.delay.show)
+  }
 
-      clearTimeout(context._timeout)
+  _leave(event, context) {
+    const dataKey = this.constructor.DATA_KEY
+    context = context || $(event.currentTarget).data(dataKey)
 
-      context._hoverState = HoverState.OUT
+    if (!context) {
+      context = new this.constructor(
+        event.currentTarget,
+        this._getDelegateConfig()
+      )
+      $(event.currentTarget).data(dataKey, context)
+    }
 
-      if (!context.config.delay || !context.config.delay.hide) {
-        context.hide()
-        return
-      }
+    if (event) {
+      context._activeTrigger[
+        event.type === 'focusout' ? Trigger.FOCUS : Trigger.HOVER
+      ] = false
+    }
 
-      context._timeout = setTimeout(() => {
-        if (context._hoverState === HoverState.OUT) {
-          context.hide()
-        }
-      }, context.config.delay.hide)
+    if (context._isWithActiveTrigger()) {
+      return
     }
 
-    _isWithActiveTrigger() {
-      for (const trigger in this._activeTrigger) {
-        if (this._activeTrigger[trigger]) {
-          return true
-        }
-      }
+    clearTimeout(context._timeout)
+
+    context._hoverState = HoverState.OUT
 
-      return false
+    if (!context.config.delay || !context.config.delay.hide) {
+      context.hide()
+      return
     }
 
-    _getConfig(config) {
-      config = {
-        ...this.constructor.Default,
-        ...$(this.element).data(),
-        ...typeof config === 'object' && config ? config : {}
+    context._timeout = setTimeout(() => {
+      if (context._hoverState === HoverState.OUT) {
+        context.hide()
       }
+    }, context.config.delay.hide)
+  }
 
-      if (typeof config.delay === 'number') {
-        config.delay = {
-          show: config.delay,
-          hide: config.delay
-        }
+  _isWithActiveTrigger() {
+    for (const trigger in this._activeTrigger) {
+      if (this._activeTrigger[trigger]) {
+        return true
       }
+    }
 
-      if (typeof config.title === 'number') {
-        config.title = config.title.toString()
-      }
+    return false
+  }
 
-      if (typeof config.content === 'number') {
-        config.content = config.content.toString()
-      }
+  _getConfig(config) {
+    const dataAttributes = $(this.element).data()
 
-      Util.typeCheckConfig(
-        NAME,
-        config,
-        this.constructor.DefaultType
-      )
+    Object.keys(dataAttributes)
+      .forEach((dataAttr) => {
+        if (DISALLOWED_ATTRIBUTES.indexOf(dataAttr) !== -1) {
+          delete dataAttributes[dataAttr]
+        }
+      })
 
-      return config
+    config = {
+      ...this.constructor.Default,
+      ...dataAttributes,
+      ...typeof config === 'object' && config ? config : {}
     }
 
-    _getDelegateConfig() {
-      const config = {}
-
-      if (this.config) {
-        for (const key in this.config) {
-          if (this.constructor.Default[key] !== this.config[key]) {
-            config[key] = this.config[key]
-          }
-        }
+    if (typeof config.delay === 'number') {
+      config.delay = {
+        show: config.delay,
+        hide: config.delay
       }
+    }
 
-      return config
+    if (typeof config.title === 'number') {
+      config.title = config.title.toString()
     }
 
-    _cleanTipClass() {
-      const $tip = $(this.getTipElement())
-      const tabClass = $tip.attr('class').match(BSCLS_PREFIX_REGEX)
-      if (tabClass !== null && tabClass.length) {
-        $tip.removeClass(tabClass.join(''))
-      }
+    if (typeof config.content === 'number') {
+      config.content = config.content.toString()
     }
 
-    _handlePopperPlacementChange(popperData) {
-      const popperInstance = popperData.instance
-      this.tip = popperInstance.popper
-      this._cleanTipClass()
-      this.addAttachmentClass(this._getAttachment(popperData.placement))
+    Util.typeCheckConfig(
+      NAME,
+      config,
+      this.constructor.DefaultType
+    )
+
+    if (config.sanitize) {
+      config.template = sanitizeHtml(config.template, config.whiteList, config.sanitizeFn)
     }
 
-    _fixTransition() {
-      const tip = this.getTipElement()
-      const initConfigAnimation = this.config.animation
-      if (tip.getAttribute('x-placement') !== null) {
-        return
+    return config
+  }
+
+  _getDelegateConfig() {
+    const config = {}
+
+    if (this.config) {
+      for (const key in this.config) {
+        if (this.constructor.Default[key] !== this.config[key]) {
+          config[key] = this.config[key]
+        }
       }
-      $(tip).removeClass(ClassName.FADE)
-      this.config.animation = false
-      this.hide()
-      this.show()
-      this.config.animation = initConfigAnimation
     }
 
-    // Static
+    return config
+  }
 
-    static _jQueryInterface(config) {
-      return this.each(function () {
-        let data = $(this).data(DATA_KEY)
-        const _config = typeof config === 'object' && config
+  _cleanTipClass() {
+    const $tip = $(this.getTipElement())
+    const tabClass = $tip.attr('class').match(BSCLS_PREFIX_REGEX)
+    if (tabClass !== null && tabClass.length) {
+      $tip.removeClass(tabClass.join(''))
+    }
+  }
 
-        if (!data && /dispose|hide/.test(config)) {
-          return
-        }
+  _handlePopperPlacementChange(popperData) {
+    const popperInstance = popperData.instance
+    this.tip = popperInstance.popper
+    this._cleanTipClass()
+    this.addAttachmentClass(this._getAttachment(popperData.placement))
+  }
 
-        if (!data) {
-          data = new Tooltip(this, _config)
-          $(this).data(DATA_KEY, data)
-        }
+  _fixTransition() {
+    const tip = this.getTipElement()
+    const initConfigAnimation = this.config.animation
 
-        if (typeof config === 'string') {
-          if (typeof data[config] === 'undefined') {
-            throw new TypeError(`No method named "${config}"`)
-          }
-          data[config]()
-        }
-      })
+    if (tip.getAttribute('x-placement') !== null) {
+      return
     }
+
+    $(tip).removeClass(ClassName.FADE)
+    this.config.animation = false
+    this.hide()
+    this.show()
+    this.config.animation = initConfigAnimation
   }
 
-  /**
-   * ------------------------------------------------------------------------
-   * jQuery
-   * ------------------------------------------------------------------------
-   */
+  // Static
+
+  static _jQueryInterface(config) {
+    return this.each(function () {
+      let data = $(this).data(DATA_KEY)
+      const _config = typeof config === 'object' && config
+
+      if (!data && /dispose|hide/.test(config)) {
+        return
+      }
 
-  $.fn[NAME] = Tooltip._jQueryInterface
-  $.fn[NAME].Constructor = Tooltip
-  $.fn[NAME].noConflict = function () {
-    $.fn[NAME] = JQUERY_NO_CONFLICT
-    return Tooltip._jQueryInterface
+      if (!data) {
+        data = new Tooltip(this, _config)
+        $(this).data(DATA_KEY, data)
+      }
+
+      if (typeof config === 'string') {
+        if (typeof data[config] === 'undefined') {
+          throw new TypeError(`No method named "${config}"`)
+        }
+        data[config]()
+      }
+    })
   }
+}
+
+/**
+ * ------------------------------------------------------------------------
+ * jQuery
+ * ------------------------------------------------------------------------
+ */
 
-  return Tooltip
-})($, Popper)
+$.fn[NAME] = Tooltip._jQueryInterface
+$.fn[NAME].Constructor = Tooltip
+$.fn[NAME].noConflict = () => {
+  $.fn[NAME] = JQUERY_NO_CONFLICT
+  return Tooltip._jQueryInterface
+}
 
 export default Tooltip
diff --git a/vendor/twbs/bootstrap/js/src/util.js b/vendor/twbs/bootstrap/js/src/util.js
index eb98d449c..d459aa266 100644
--- a/vendor/twbs/bootstrap/js/src/util.js
+++ b/vendor/twbs/bootstrap/js/src/util.js
@@ -1,152 +1,177 @@
-import $ from 'jquery'
-
 /**
  * --------------------------------------------------------------------------
- * Bootstrap (v4.1.3): util.js
+ * Bootstrap (v4.3.1): util.js
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  * --------------------------------------------------------------------------
  */
 
-const Util = (($) => {
-  /**
-   * ------------------------------------------------------------------------
-   * Private TransitionEnd Helpers
-   * ------------------------------------------------------------------------
-   */
-
-  const TRANSITION_END = 'transitionend'
-  const MAX_UID = 1000000
-  const MILLISECONDS_MULTIPLIER = 1000
+import $ from 'jquery'
 
-  // Shoutout AngusCroll (https://goo.gl/pxwQGp)
-  function toType(obj) {
-    return {}.toString.call(obj).match(/\s([a-z]+)/i)[1].toLowerCase()
-  }
+/**
+ * ------------------------------------------------------------------------
+ * Private TransitionEnd Helpers
+ * ------------------------------------------------------------------------
+ */
 
-  function getSpecialTransitionEndEvent() {
-    return {
-      bindType: TRANSITION_END,
-      delegateType: TRANSITION_END,
-      handle(event) {
-        if ($(event.target).is(this)) {
-          return event.handleObj.handler.apply(this, arguments) // eslint-disable-line prefer-rest-params
-        }
-        return undefined // eslint-disable-line no-undefined
+const TRANSITION_END = 'transitionend'
+const MAX_UID = 1000000
+const MILLISECONDS_MULTIPLIER = 1000
+
+// Shoutout AngusCroll (https://goo.gl/pxwQGp)
+function toType(obj) {
+  return {}.toString.call(obj).match(/\s([a-z]+)/i)[1].toLowerCase()
+}
+
+function getSpecialTransitionEndEvent() {
+  return {
+    bindType: TRANSITION_END,
+    delegateType: TRANSITION_END,
+    handle(event) {
+      if ($(event.target).is(this)) {
+        return event.handleObj.handler.apply(this, arguments) // eslint-disable-line prefer-rest-params
       }
+      return undefined // eslint-disable-line no-undefined
     }
   }
+}
 
-  function transitionEndEmulator(duration) {
-    let called = false
+function transitionEndEmulator(duration) {
+  let called = false
 
-    $(this).one(Util.TRANSITION_END, () => {
-      called = true
-    })
+  $(this).one(Util.TRANSITION_END, () => {
+    called = true
+  })
 
-    setTimeout(() => {
-      if (!called) {
-        Util.triggerTransitionEnd(this)
-      }
-    }, duration)
+  setTimeout(() => {
+    if (!called) {
+      Util.triggerTransitionEnd(this)
+    }
+  }, duration)
 
-    return this
-  }
+  return this
+}
 
-  function setTransitionEndSupport() {
-    $.fn.emulateTransitionEnd = transitionEndEmulator
-    $.event.special[Util.TRANSITION_END] = getSpecialTransitionEndEvent()
-  }
+function setTransitionEndSupport() {
+  $.fn.emulateTransitionEnd = transitionEndEmulator
+  $.event.special[Util.TRANSITION_END] = getSpecialTransitionEndEvent()
+}
 
-  /**
-   * --------------------------------------------------------------------------
-   * Public Util Api
-   * --------------------------------------------------------------------------
-   */
+/**
+ * --------------------------------------------------------------------------
+ * Public Util Api
+ * --------------------------------------------------------------------------
+ */
 
-  const Util = {
+const Util = {
 
-    TRANSITION_END: 'bsTransitionEnd',
+  TRANSITION_END: 'bsTransitionEnd',
 
-    getUID(prefix) {
-      do {
-        // eslint-disable-next-line no-bitwise
-        prefix += ~~(Math.random() * MAX_UID) // "~~" acts like a faster Math.floor() here
-      } while (document.getElementById(prefix))
-      return prefix
-    },
+  getUID(prefix) {
+    do {
+      // eslint-disable-next-line no-bitwise
+      prefix += ~~(Math.random() * MAX_UID) // "~~" acts like a faster Math.floor() here
+    } while (document.getElementById(prefix))
+    return prefix
+  },
 
-    getSelectorFromElement(element) {
-      let selector = element.getAttribute('data-target')
-      if (!selector || selector === '#') {
-        selector = element.getAttribute('href') || ''
-      }
+  getSelectorFromElement(element) {
+    let selector = element.getAttribute('data-target')
 
-      try {
-        return document.querySelector(selector) ? selector : null
-      } catch (err) {
-        return null
-      }
-    },
+    if (!selector || selector === '#') {
+      const hrefAttr = element.getAttribute('href')
+      selector = hrefAttr && hrefAttr !== '#' ? hrefAttr.trim() : ''
+    }
 
-    getTransitionDurationFromElement(element) {
-      if (!element) {
-        return 0
-      }
+    try {
+      return document.querySelector(selector) ? selector : null
+    } catch (err) {
+      return null
+    }
+  },
 
-      // Get transition-duration of the element
-      let transitionDuration = $(element).css('transition-duration')
-      const floatTransitionDuration = parseFloat(transitionDuration)
+  getTransitionDurationFromElement(element) {
+    if (!element) {
+      return 0
+    }
 
-      // Return 0 if element or transition duration is not found
-      if (!floatTransitionDuration) {
-        return 0
-      }
+    // Get transition-duration of the element
+    let transitionDuration = $(element).css('transition-duration')
+    let transitionDelay = $(element).css('transition-delay')
 
-      // If multiple durations are defined, take the first
-      transitionDuration = transitionDuration.split(',')[0]
-
-      return parseFloat(transitionDuration) * MILLISECONDS_MULTIPLIER
-    },
-
-    reflow(element) {
-      return element.offsetHeight
-    },
-
-    triggerTransitionEnd(element) {
-      $(element).trigger(TRANSITION_END)
-    },
-
-    // TODO: Remove in v5
-    supportsTransitionEnd() {
-      return Boolean(TRANSITION_END)
-    },
-
-    isElement(obj) {
-      return (obj[0] || obj).nodeType
-    },
-
-    typeCheckConfig(componentName, config, configTypes) {
-      for (const property in configTypes) {
-        if (Object.prototype.hasOwnProperty.call(configTypes, property)) {
-          const expectedTypes = configTypes[property]
-          const value         = config[property]
-          const valueType     = value && Util.isElement(value)
-            ? 'element' : toType(value)
-
-          if (!new RegExp(expectedTypes).test(valueType)) {
-            throw new Error(
-              `${componentName.toUpperCase()}: ` +
-              `Option "${property}" provided type "${valueType}" ` +
-              `but expected type "${expectedTypes}".`)
-          }
+    const floatTransitionDuration = parseFloat(transitionDuration)
+    const floatTransitionDelay = parseFloat(transitionDelay)
+
+    // Return 0 if element or transition duration is not found
+    if (!floatTransitionDuration && !floatTransitionDelay) {
+      return 0
+    }
+
+    // If multiple durations are defined, take the first
+    transitionDuration = transitionDuration.split(',')[0]
+    transitionDelay = transitionDelay.split(',')[0]
+
+    return (parseFloat(transitionDuration) + parseFloat(transitionDelay)) * MILLISECONDS_MULTIPLIER
+  },
+
+  reflow(element) {
+    return element.offsetHeight
+  },
+
+  triggerTransitionEnd(element) {
+    $(element).trigger(TRANSITION_END)
+  },
+
+  // TODO: Remove in v5
+  supportsTransitionEnd() {
+    return Boolean(TRANSITION_END)
+  },
+
+  isElement(obj) {
+    return (obj[0] || obj).nodeType
+  },
+
+  typeCheckConfig(componentName, config, configTypes) {
+    for (const property in configTypes) {
+      if (Object.prototype.hasOwnProperty.call(configTypes, property)) {
+        const expectedTypes = configTypes[property]
+        const value         = config[property]
+        const valueType     = value && Util.isElement(value)
+          ? 'element' : toType(value)
+
+        if (!new RegExp(expectedTypes).test(valueType)) {
+          throw new Error(
+            `${componentName.toUpperCase()}: ` +
+            `Option "${property}" provided type "${valueType}" ` +
+            `but expected type "${expectedTypes}".`)
         }
       }
     }
-  }
+  },
 
-  setTransitionEndSupport()
+  findShadowRoot(element) {
+    if (!document.documentElement.attachShadow) {
+      return null
+    }
+
+    // Can find the shadow root otherwise it'll return the document
+    if (typeof element.getRootNode === 'function') {
+      const root = element.getRootNode()
+      return root instanceof ShadowRoot ? root : null
+    }
+
+    if (element instanceof ShadowRoot) {
+      return element
+    }
+
+    // when we don't find a shadow root
+    if (!element.parentNode) {
+      return null
+    }
+
+    return Util.findShadowRoot(element.parentNode)
+  }
+}
 
-  return Util
-})($)
+setTransitionEndSupport()
 
 export default Util