Merge branch 'master' into adequaterecord

* master: (122 commits)
  Rails.application should be set inside before_configuration hook
  remove check for present? from delete_all
  Remove useless begin..end
  Build the reverse_order on its proper method.
  Use connection-specific bytea escaping
  Ignore order when doing count.
  make enums distinct per class
  Remove unused `subclass_controller_with_flash_type_bar` var from flash test.
  fix CollectionProxy delete_all documentation
  Added OS X specific commands to installation guide [ci skip] Recommended using homebrew for installing MySQL and PostgreSQL
  Fix setup of adding _flash_types test.
  Use SVG version of travis build status badge [skip ci]
  W3C CSP document moved to gihub.io URL [ci skip]
  sprockets-rails was released
  Fix the test defining the models in the right place
  Add CHANGELOG entry for #11650 [ci skip]
  Declare the assets dependency
  Use sass-rails 4.0.3
  Make possible to use sprockets-rails 2.1
  add missing parentheses to validates_with documentation [skip ci]
  ...

1 files changed, 1 insertions, 1 deletions

diff --git a/README.md b/README.md
index 7f079536d2..c3577efe53 100644
--- a/README.md
+++ b/README.md
@@ -76,7 +76,7 @@ We encourage you to contribute to Ruby on Rails! Please check out the
 
 ## Code Status
 
-* [![Build Status](https://travis-ci.org/rails/rails.png?branch=master)](https://travis-ci.org/rails/rails)
+* [![Build Status](https://travis-ci.org/rails/rails.svg?branch=master)](https://travis-ci.org/rails/rails)
 
 ## License