Missing 1.8.7 backport extensions

activerecord/lib/active_record/base.rb

@@ -9,6 +9,7 @@
 require 'active_support/core_ext/hash/indifferent_access'
 require 'active_support/core_ext/hash/slice'
 require 'active_support/core_ext/string/behavior'
+require 'active_support/core_ext/symbol'
 require 'active_support/core/time'
 
 module ActiveRecord #:nodoc:

activerecord/lib/active_record/validations.rb

@@ -1,3 +1,5 @@
+require 'active_support/core_ext/integer/even_odd'
+
 module ActiveRecord
   # Raised by <tt>save!</tt> and <tt>create!</tt> when the record is invalid.  Use the
   # +record+ method to retrieve the record which did not validate.