tree b3e142c681ec4a862895edd1faa1ab43edd9bfde
parent 8ac142d01dda6075373e7ef09efe445546497586
author suibin zhang <suibin@onlab.us> 1446760521 -0800
committer suibin zhang <suibin@onlab.us> 1446767892 -0800

make image cleanup more robust; add check/start docker case; add check onos log; other minor fixes

Change-Id: I47c8d79d01cb7353d60ab340863034f2891c1663