Add version to thor frozen gem.

railties/lib/generators.rb

@@ -178,7 +178,7 @@ module Rails
       # Return all defined namespaces.
       #
       def self.namespaces
-        Thor::Base.subclasses.map(&:namespace)
+        Thor::Base.subclasses.map{ |klass| klass.namespace }
       end
 
       # Keep builtin generators in an Array[Array[group, name]].

railties/lib/vendor/thor.rb

@@ -3,7 +3,7 @@ begin
   require 'rubygems'
   gem 'thor', '>= 0.11.0'
 rescue Gem::LoadError
-  $:.unshift "#{File.dirname(__FILE__)}/thor/lib"
+  $:.unshift "#{File.dirname(__FILE__)}/thor-0.11.0/lib"
 end
 
 require 'thor'