Reinstate "Fix for Bug NMS-6551"

This reverts commit 55304f4105fe4ce64bcaf193fbf1c8064f3d1cbd.
It puts back the (currently broken) Alarmd patch for NMS-6551.
Add an extra NPE on AlarmPersisterImpl to make AlarmdTest and AlarmsPafeTest happy.
use service so we are compatible with rhel7
force install all RPMs
Merge branch 'jira/NMS-6551' into 1.12
[bamboo] Automated branch merge (from 1.12:d6992125ab96d13da5f379d5de5324afeb859a99)