move the Rails 3.1 engine to its own file
move the Rails 3.1 engine to its own file

STRd6/jquery-rails,purcell/jquery-rails,blurb/jquery-rails,rails/jquery-rails,ipmobiletech/jquery-rails,Windermere/jquery-rails,dalizard/jquery-rails,tricknotes/jquery-rails,nicolasleger/jquery-rails,jasl/jquery-middleman,indirect/jquery-rails,JamesHarker/jquery-rails,maclover7/jquery-rails,ehowe/jsc3d-rails