Add missing function I removed because I thought it wasn't being used.  (oops)
Oops, screwed up the line-noise style cardinality specification.  Also provide contextual labels for parent/child relationship.
Add region orgnode.
Make linkage between component and device more explicit, by storing UUIDs on both objects pointing at the other.
Add custom modeler for OSProcess on openstack linux hosts.
Updated zenpacklib to the feature/inherited_props_and_rels work-in-progress.