tree 8348b6cfcdd0e412dbeca9536699695d74b77404
parent ac32718820059daa0ace4af51bcb71621645935e
author Hyunsun Moon <hyunsun.moon@gmail.com> 1469006360 -0700
committer Gerrit Code Review <gerrit@onlab.us> 1469063717 +0000

Fix to update gateway group only if new gateway is added

Also implemented equals, hashCode, and toString for GatewayNode.

Change-Id: I4c487cafa263833701c5790b2057c1d9c23e33bf