Merge branch 'master' into instance_reader

* master: (30 commits)
  Bump tzinfo. 0.3.31 was released on November 6, 2011.
  Fix GH #4909. Dependency on TZInfo move from AR to AS.
  moving ordered hash to normal hash because ruby 1.9.3 hash defaultly ordered one
  Refactored the OrderedHash related stuff
  Replaced OrderedHash usage with Ruby 1.9 Hash
  Replaced OrderedHash with Hash for ruby 1.9 series
  removed unnecessary code
  replacing the orderhash with hash for ruby-1.9
  Clean up some wording.
  Fix typo.
  test title changed corresponding to the test
  replaced active support ordered hash to ruby hash on active resource
  PostgreSQL does not work in the same way of the other adapters
  AR::Relation#pluck: improve to work with joins
  Fix match docs
  Fix attribute_before_type_cast for serialized attributes. Fixes #4837.
  Fix failing request test
  Fixes in AMo README
  Update README to mention lint.
  Trim down Active Model API by removing valid? and errors.full_messages
  ...

3 files changed, 39 insertions, 13 deletions

diff --git a/activesupport/lib/active_support/core_ext/integer/inflections.rb b/activesupport/lib/active_support/core_ext/integer/inflections.rb
index 0e606056c0..1e30687166 100644
--- a/activesupport/lib/active_support/core_ext/integer/inflections.rb
+++ b/activesupport/lib/active_support/core_ext/integer/inflections.rb
@@ -14,4 +14,18 @@ class Integer
   def ordinalize
     ActiveSupport::Inflector.ordinalize(self)
   end
+
+  # Ordinal returns the suffix used to denote the position
+  # in an ordered sequence such as 1st, 2nd, 3rd, 4th.
+  #
+  #  1.ordinal     # => "st"
+  #  2.ordinal     # => "nd"
+  #  1002.ordinal  # => "nd"
+  #  1003.ordinal  # => "rd"
+  #  -11.ordinal   # => "th"
+  #  -1001.ordinal # => "st"
+  #
+  def ordinal
+    ActiveSupport::Inflector.ordinal(self)
+  end
 end
diff --git a/activesupport/lib/active_support/inflector/methods.rb b/activesupport/lib/active_support/inflector/methods.rb
index 12dc86aeac..4b7c36f839 100644
--- a/activesupport/lib/active_support/inflector/methods.rb
+++ b/activesupport/lib/active_support/inflector/methods.rb
@@ -250,6 +250,29 @@ module ActiveSupport
       end
     end
 
+    # Returns the suffix that should be added to a number to denote the position
+    # in an ordered sequence such as 1st, 2nd, 3rd, 4th.
+    #
+    # Examples:
+    #   ordinal(1)     # => "st"
+    #   ordinal(2)     # => "nd"
+    #   ordinal(1002)  # => "nd"
+    #   ordinal(1003)  # => "rd"
+    #   ordinal(-11)   # => "th"
+    #   ordinal(-1021) # => "st"
+    def ordinal(number)
+      if (11..13).include?(number.to_i.abs % 100)
+        "th"
+      else
+        case number.to_i.abs % 10
+          when 1; "st"
+          when 2; "nd"
+          when 3; "rd"
+          else    "th"
+        end
+      end
+    end
+
     # Turns a number into an ordinal string used to denote the position in an
     # ordered sequence such as 1st, 2nd, 3rd, 4th.
     #
@@ -261,16 +284,7 @@ module ActiveSupport
     #   ordinalize(-11)   # => "-11th"
     #   ordinalize(-1021) # => "-1021st"
     def ordinalize(number)
-      if (11..13).include?(number.to_i.abs % 100)
-        "#{number}th"
-      else
-        case number.to_i.abs % 10
-          when 1; "#{number}st"
-          when 2; "#{number}nd"
-          when 3; "#{number}rd"
-          else    "#{number}th"
-        end
-      end
+      "#{number}#{ordinal(number)}"
     end
 
     private
diff --git a/activesupport/lib/active_support/json/encoding.rb b/activesupport/lib/active_support/json/encoding.rb
index fcd83f8dea..b2adfea273 100644
--- a/activesupport/lib/active_support/json/encoding.rb
+++ b/activesupport/lib/active_support/json/encoding.rb
@@ -1,7 +1,6 @@
 require 'active_support/core_ext/object/to_json'
 require 'active_support/core_ext/module/delegation'
 require 'active_support/json/variable'
-require 'active_support/ordered_hash'
 
 require 'bigdecimal'
 require 'active_support/core_ext/big_decimal/conversions' # for #to_s
@@ -239,8 +238,7 @@ class Hash
 
     # use encoder as a proxy to call as_json on all values in the subset, to protect from circular references
     encoder = options && options[:encoder] || ActiveSupport::JSON::Encoding::Encoder.new(options)
-    result = self.is_a?(ActiveSupport::OrderedHash) ? ActiveSupport::OrderedHash : Hash
-    result[subset.map { |k, v| [k.to_s, encoder.as_json(v, options)] }]
+    Hash[subset.map { |k, v| [k.to_s, encoder.as_json(v, options)] }]
   end
 
   def encode_json(encoder)