Removes unused nvp plugin config param

nvp_cluster_uuid is no longer used; it was missed
during the configuration file tweaks that was done
during Havana.

Change-Id: Id6dd684833c99453cd97d88584be04d99fd21550
Closes-bug: #1251086
Add log statements for policy check failures

Misconfiguration of the policy.json file may
cause policy check failures. It's kind to the
developer to log the underlying exception
so that he/she can have more information as to
how to address the problem.

Closes bug: #1246139

Change-Id: I8664959cb98b3a41d159db3acb91da9baba810ae
Merge "Add log statements for policy check failures"
Imported Translations from Transifex

Change-Id: If02d797b5d423db899bba128e2efedfd4afb1ad3
Merge "Removes unused nvp plugin config param"