Changes for THU

Gemfile

@@ -1,5 +1,5 @@
 source 'http://rubygems.org'
-gem 'rails'
+gem 'rails', "~> 3.2"
 
 gem "brakeman"
 gem 'mime-types'
@@ -21,7 +21,7 @@ gem 'kaminari', :git => 'git://github.com/amatsuda/kaminari.git'
 gem 'mini_magick'
 gem 'mongoid', '> 2.1', '< 3.0.0'
 gem 'mongoid-tree', :require => 'mongoid/tree'
-gem "mongo_session_store-rails3"
+gem "mongo_session_store-rails3", "~> 3.0"
 gem 'nokogiri'