Fix CID 1114608 Store virtualsize in the the virtualsize column
Fix false positve in coverity, simple rewrite.
Fix CID 1114609 Log the correct number
Fix CID 1114611 Check the right variable
Fix overflow before widening issues reported by Coverity
CLOUDSTACK-7178: Correcting imports in test_escalations* test cases
CLOUDSTACK-7125: Fixed test_blocker_bugs.py, added code to wait for snapshots to be in 'BackedU' state
CLOUDSTACK-7127: Fix for addRegion failure, avoiding regionid 1 while creating new region through test case