Merge branch 'feature/ZEN-13131-4' into develop
temp commit
twisted nova api client
remove unused try/except
Merge pull request #32 from zenoss/feature/ZEN-13132

Feature/zen 13132
Model the nova version and put it on the openstack endpoint's os component.
Model enabled/operstatus on nova services.
Clean imports
Basic nova service status monitoring (work in progress)
Convert to use setApplyDataMapToOpenStackEndpoint
__init__
Add products
No longer needed.
What year is it?
Merge branch 'feature/nova_modeler_improvements' of github.com:zenoss/ZenPacks.zenoss.OpenStack into feature/nova_modeler_improvements

Conflicts:
	ZenPacks/zenoss/OpenStack/modeler/plugins/zenoss/OpenStack.py