Use source-repository interface in orc element

Change-Id: I5d50cec88acc1f2e407a7d9f8fee0dbbdd34abdb
Use source-repository interface in devstack element

Change-Id: I208ceb1c62d7718375ffb5a4d11eaebb1e176131
Use source-repository interface in novnc element

Change-Id: Ie98457275fb3842d84360ea65af51fff6d0171c4
Use source-repository interface in clients element

Change-Id: I7c66c594d373219b3843590608d3ce4d088dbfc1
Merge "Use source-repository interface in orc element"
Merge "Use source-repository interface in devstack element"
Merge "Use source-repository interface in novnc element"
Merge "Use source-repository interface in clients element"