Adding support for netapp NFS direct driver

This commit adds support for the 7mode NFS direct driver.
Changed the 'if driver' to a case, somewhat based off the
rcbops cinder-volume recipe. if the NFS driver is chosen, the
volume recipe will install the nfs client package, setup a mountpoint
a shares config file, and setups cinder.conf accordingly

Change-Id: Ia8d4c31235426614a317729494569062a23a05bf
remove duplicate test case

Change-Id: I4cb75bfbc224564897ca39a4f54258e6acff1f7e
add PostgreSQL support

Change-Id: Ifcec59a28a4531f8e708c3d053c3cf6c8e99b710
implement SUSE platform support

Change-Id: Ief3e20dd27f262d742db04549b5ac2213dc725fe
Merge "add PostgreSQL support"
Cookbook defines rabbit settings

When setting a coobook's default attributes from the attributes
of another cookbook, it becomes impossible to override from
a wrapper cookbook.  We just started working on wrapper cookbooks,
and attempting to override `openstack["mq"]` settings proved
unsuccessful.

Since the community actively has people looking into wrapper
cookbooks, this fix seems reasonable.

Change-Id: Ibadc4bddd1bc66638cd826f5bc6e3f6ee3a38179
Merge "implement SUSE platform support"
fix volume package name on suse

Change-Id: I923557c4a38d9f5bdae6e7ca4cbec270224fb3fd