Works by turning all peers into members of all defined volumes
and any machine that isn't in the peers list mounts the
gluster share from the primary peer.

Jenkins worker refactor

Adds status checking and will add new or previously/accidentally removed
members to mongo clusters.

Feanil/vpc deploys

Added ansible.cfg symlink for shortstack and shortstack-xml

Fixed some typos in the README

Jarv/single instance updates

Removed upstart scripts
Removed Python install scripts
Combined xvfb and browser playbooks
Changed Jenkins user base to /home/jenkins
Added wheel dir creation
Moved jenkins_env script
Changed data directory to /var
Install newer version of rake in rbenv role
Added edxlocal role
Remove system packages already installed by common and edxlocal
Added list of Python packages to pre-install

interface

Jarv/jenkins var updates for deploy