vagrant parallel provisioning

Added a small script which help to do vagrant parallel provisioning.
Merge pull request #274 from hkumarmk/vagrant_parallel_provisioning

vagrant parallel provisioning
Added support for cinder-backup
Created a new directory manifests/cinder
Created a new file manifests/cinder/backup.pp
Changed manifests/cinder.pp to call rjil::cinder::backup
Merge pull request #278 from amar266/master

Added support for cinder-backup
Merge pull request #277 from hkumarmk/combined_patch_for_api_apache_frontend

Combined patch for api apache frontend
configure nova to use https for glance api