Upgrade to 3.1 and introduce asset pipeline

Gemfile

@@ -1,19 +1,16 @@
 source 'http://rubygems.org'
 
-gem 'rake' #, '0.8.7'
+gem 'rake'
 
-gem 'rails', '3.0.5'
-gem 'jquery-rails', '>= 0.2.6'
-
-gem 'sqlite3'
-gem 'sqlite3-ruby', :require => 'sqlite3'
+gem 'rails', '3.1.3'
+gem 'jquery-rails', '1.0.12'
 
 # templating
 gem 'haml-rails'
-gem "sass"
 
-# for searching youtube
-gem "youtube_it"
+# for youtube and 7digital APIs
+gem 'youtube_it'
+gem '7digital'
 
 # for using last.fm api
 gem 'typhoeus'
@@ -22,15 +19,6 @@ gem 'typhoeus'
 gem 'redis'
 gem 'redis-namespace'
 
-# for using 7digital api
-gem '7digital'
-
-# for asset packaging
-gem 'closure'
-gem 'jammit', :git => "git://github.com/documentcloud/jammit.git"
-gem 'win32-open3-19' # win32-open3 in order to use POpen4 on Win32 (dependency of jammit)
-
-
 # for converting json/xml to object
 gem 'json'
 gem 'hashie'
@@ -42,19 +30,23 @@ gem 'oa-openid', :require => 'omniauth/openid'
 
 # for file upload ( -> avatar )
 gem 'paperclip',  '~> 2.3'
+gem 'jammit', '~> 0.6.5' #, :git => 'git://github.com/documentcloud/jammit.git'
 
-# youtube search
-gem 'youtube_it'
-
-group :development, :test do
-  # for html2haml
-  # gem 'hpricot'
-  gem 'ruby_parser'
-  
-  # alternative servers (because openID URIs are too long for WEBRick)
-  gem 'mongrel', '1.2.0.pre2'
-
+group :assets do
+  gem 'sass-rails',   '~> 3.1.5'
+  gem 'coffee-rails', '~> 3.1.1'
+  gem 'uglifier',     '>= 1.0.3'
+  gem 'closure'
+  gem 'win32-open3-19' # win32-open3 in order to use POpen4 on Win32 (dependency of jammit)
 end
 
-# Deploy with Capistrano
-# gem 'capistrano'
+group :development, :test do
+  gem 'sqlite3'
+  gem 'sqlite3-ruby', :require => 'sqlite3'
+
+  # gem 'hpricot' # for html2haml
+  gem 'ruby_parser'
+
+  # alternative servers (because openID URIs are too long for WEBRick)
+  gem 'mongrel', '1.2.0.pre2'
+end