Remove cinder-config element.

Make cinder consistent with other OpenStack service
elements by moving cinder-config into a subdirectory
of cinder.

Change-Id: I9497062226b43fc386c02f9210029b86d4237796
Replace rabbit's broken init.d script with an upstart.

Change-Id: I9d480eb0e3eb4711bfa67ed3964ef8c7704ed13a