Add support for cmake versions other than 2.8
Add support for cmake versions other than 2.8

Change-Id: Ib6b3a66736a2465f89026a8b3e94ea5803505c8f

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