Update Rails 3.0.9 -> 3.2.3.

Gemfile

@@ -1,14 +1,14 @@
 # -*- mode: yaml; -*-
 source 'http://rubygems.org'
 
-gem 'rails', '3.0.9'
+gem 'rails', '3.2.3'
 
 gem 'mysql2', '0.2.7'
 gem 'activeadmin', '0.4.0'
 
 # https://github.com/plataformatec/devise
-gem 'devise', '1.2.1'
-gem 'bcrypt-ruby', '2.1.4'
+gem 'devise', '2.0.4'
+gem 'bcrypt-ruby', '3.0.1'
 
 # https://github.com/ryanb/cancan
 gem 'cancan', '1.6.5'
@@ -32,6 +32,16 @@ gem 'mail'
 # gem 'sqlite3-ruby', :require => 'sqlite3'
 # gem 'aws-s3', :require => 'aws/s3'
 
+# Gems used only for assets and not required
+# in production environments by default.
+group :assets do
+  gem 'sass-rails', '3.2.5'
+  gem 'coffee-rails', '3.2.2'
+  gem 'uglifier'
+end
+
+# gem 'jquery-rails'
+
 # Bundle gems for the local environment. Make sure to
 # put test-only gems in this group so their generators
 # and rake tasks are available in development mode: