Merge branch 'issue-disable-debug-assets' into 'master'

Issue disable debug assets

Improve development speed. Concats all javascript into on file / HTTP request.

See merge request !1017

config/environments/development.rb

@@ -23,7 +23,7 @@ Gitlab::Application.configure do
   config.assets.compress = false
 
   # Expands the lines which load the assets
-  config.assets.debug = true
+  # config.assets.debug = true
 
   # For having correct urls in mails
   config.action_mailer.default_url_options = { host: 'localhost', port: 3000 }