Merge branch 'master' of https://github.com/OPENNETWORKINGLAB/ONOS

Conflicts:
	src/main/java/net/floodlightcontroller/linkdiscovery/internal/LinkStorageImpl.java
	src/main/java/net/onrc/onos/util/GraphDBConnection.java
	src/test/java/net/floodlightcontroller/linkdiscovery/internal/LinkStorageImplTest.java