Adding policy checks for heat

Change-Id: Ia454eefbaaf0c6262bfcc2890dead4d074555404
Implements: blueprint heat-rbac
Remove duplicate colon from Size string

Change-Id: I23354aae9427183bb79e4b51b2c8c29b3519e7ae
Closes-bug: #1298991
Merge "Remove duplicate colon from Size string"
Merge "Adding policy checks for heat"