Connection fix for resque worker

Add missing libyaml-dev to debian install script

only address resque works in post_receive and mailer queue

Update rails version to 3.2.5

Models Refactoring: Move methods to roles

Fix a minor typo in example configuration file

set encoding to utf-8 for pygments.rb wrapper

new ruby version and fix of Ubuntu

ability to remove source branch after merge

Clean up helpers

Improve performance when handling large repo's

Compatibilizing with a fresh install of ubuntu 12.04 LTS i386 (virtualized)

Clean up application_helper.rb code

Clean up tab_helper.rb code

Use the faster alternative methods in grit to count tags and branches (which I added). This is much faster in all cases, but especially on large repositories the difference should be obvious.