Merge branch 'master' of ssh://gerrit.onlab.us:29418/onos-next

Conflicts:
	core/net/src/main/java/org/onlab/onos/net/device/impl/DeviceManager.java
	core/store/hz/cluster/src/main/java/org/onlab/onos/store/cluster/impl/DistributedMastershipStore.java

Change-Id: Ia1274657b27e01366a4a87196a13068d7104ee80