Updating README links
Install to /usr to avoid $PATH problems
Run tests via /vagrant
Rewrite Vagrantfile to multi VM format

This makes it easy to start multiple VMs but also improves debugability
because the VM will be named foreman-bats_centos64 in libvirt as well.
Enable pty over SSH due to EL6 sudoers w/requiretty
Install hammer, check host and proxy are registered
Install yum-config-manager
Merge pull request #6 from domcleal/yum-config

Install yum-config-manager
Allow changing the module path through $MODULE_PATH
Document $MODULE_PATH
Remove ignored dir, as vagrant-rackspace also ignores it
Conditionally set pty, only on RH hosts to avoid hangs
Support Debian installer package layouts
Add example openstack config
Swap RHEL and Fedora, else Fedora takes wrong path
Use a more reliable package-check for debian
Add some extra squeeze setup
Only upgrade puppet if it's already installed
Install lsb_release on Debian if missing
Fix example instruction