Move compute ceph configuration from site to core

Move "if defined then configure ceph" loop from site.pp to core.pp
Merge pull request #162 from rickerc/move_ceph_compute

Move compute ceph configuration from site to core
Merge branch 'multi-node' of https://github.com/CiscoSystems/grizzly-manifests into bp/ha.g2

Conflicts:
	manifests/core.pp