support for packaged installation

seems like duplicate of https://github.com/crowbar/barclamp-quantum/pull/14
but https://github.com/crowbar/barclamp-quantum/pull/14 should contain https://github.com/MirantisDellCrowbar/barclamp-quantum/commit/7425d22dd03703b50f80623ad9e4a0c81a62e08a