fix ps1 for centos and update readme to reflect the changes
use facter to avoid creating a subprocess on each command
update readme to reflect last changes
Add Gemfile
Update gitignore
Bump bundler versions
Fix deprecation notice
Merge branch 'master' of https://github.com/arioch/puppet-bash into arioch-master

Conflicts:
	templates/centos/PS1.erb
	templates/debian/PS1.erb