Updated Capistrano

Updated Capistrano because of "Could not find capistrano-2.13.3 in any
of the sources"
Updated Rails to 3.2.11 due to security issue

See http://weblog.rubyonrails.org/2013/1/8/Rails-3-2-11-3-1-10-3-0-19-and-2-3-15-have-been-released/