some cleanup:

* move capistrano config files
* remove useless files

Capfile

@@ -1,3 +1,6 @@
+set :deploy_config_path, 'app/config/capistrano/deploy.rb'
+set :stage_config_path, 'app/config/capistrano/deploy'
+
 # Load DSL and set up stages
 require 'capistrano/setup'
 
@@ -6,24 +9,5 @@ require 'capistrano/deploy'
 
 require 'capistrano/symfony'
 
-# Include tasks from other gems included in your Gemfile
-#
-# For documentation on these, see for example:
-#
-#   https://github.com/capistrano/rvm
-#   https://github.com/capistrano/rbenv
-#   https://github.com/capistrano/chruby
-#   https://github.com/capistrano/bundler
-#   https://github.com/capistrano/rails
-#   https://github.com/capistrano/passenger
-#
-# require 'capistrano/rvm'
-# require 'capistrano/rbenv'
-# require 'capistrano/chruby'
-# require 'capistrano/bundler'
-# require 'capistrano/rails/assets'
-# require 'capistrano/rails/migrations'
-# require 'capistrano/passenger'
-
 # Load custom tasks from `lib/capistrano/tasks` if you have any defined
 Dir.glob('lib/capistrano/tasks/*.rake').each { |r| import r }