Jdmundrawala/11 stable bash

@adamedx @schisamo @sersut @randomcamel 
Take a look please. There will be one change (working on it after I kick off a build), and that is the repo name. It will be msys-bash.
We don't want/need this change as their is an override in the chef project:
https://github.com/opscode/omnibus-chef/blob/release/chef-11.16.0/config/projects/chef.rb#L39-L40