Rails 2.3.5

Upgrade to Rails 2.3.5.
Also work around this bug:
 https://rails.lighthouseapp.com/projects/8994/tickets/3524
created by the aforementioned
Rails release.

vendor/rails/activesupport/lib/active_support/json/decoding.rb

@@ -6,6 +6,7 @@ module ActiveSupport
 
   module JSON
     class << self
+      attr_reader :parse_error
       delegate :decode, :to => :backend
 
       def backend
@@ -20,6 +21,7 @@ module ActiveSupport
           require "active_support/json/backends/#{name.to_s.downcase}.rb"
           @backend = ActiveSupport::JSON::Backends::const_get(name)
         end
+        @parse_error = @backend::ParseError
       end
 
       def with_backend(name)