Explicitly install ceph-fs-common for cephfs
Creates the radosgw sentinel directory differently

Instead of relying on the radosgw_apache recipe,
just make it in the main radosgw recipe
Merge pull request #128 from hufman/ubuntu14-cephfs

Explicitly install ceph-fs-common for cephfs
Merge pull request #129 from hufman/radosgw-done

Creates the radosgw sentinel directory differently
Reflect repo renaming
Fix rubocop regression
Add gitter to readme