Fix bad param to setup_test_volume class

When setting up the iSCSI backend, we also call the
setup_test_volume class from puppet-cinder.  It takes a param
called 'volume_name', but we're trying to send it 'volume_group'.
The bug has no negative effect since the value we set matches
the default value for volume_name anyway, but users that read
the YAML will probably be confused if they try to change the
volume name and don't see it take effect.

Change-Id: Iabb6d2bd781be13d3caecc63b18d2649778c3460
Closes-Bug: #1284319
Add Support for mongodb replica sets to the data
model

Include mongodb replication as part of the data
model to enable HA scenarios.

Change-Id: I25335cdb7759f443e227fe793fb4cde7d5e69ed5
Re-enable nova services

When grizzly-hack.yaml went away in I706ea95e, nova services
stopped being enabled by default (apparently they weren't
mapped individually elsewhere).  We shouldn't need to force
the end user to map enablement for these individually, so this
patch adds enablement via common.yaml (the next point up in the
hierarchy from where grizzly-hack.yaml used to sit, so it's
low enough to be overridden by anything that used to override
those parameters anyway).  This is done by a single parameter
with a corresponding data mapping in data_mappings/common.yaml.

Change-Id: Ib658e53d4f6d67337abf42a6ed18cd6e6dd40cda
Merge "Add Support for mongodb replica sets to the data model"
Merge "Re-enable nova services"
Merge remote-tracking branch 'upstream/master' into coi-development