crowddetector: Accept relative points instead of absolute points
crowddetector: Accept relative points instead of absolute points

Change-Id: Ice9661cb7ed2e7791840c7bfe0ae123645435b25

TribeMedia/kms-elements,Kurento/kms-elements,shelsonjava/kms-elements,Kurento/kms-elements,Kurento/kms-elements,shelsonjava/kms-elements,shelsonjava/kms-elements,TribeMedia/kms-elements,TribeMedia/kms-elements