tree 61c19159a17d64cc5a012c48a32cf45ec8433e49
parent e889e2d0f22adc78190496943702a8f11e097e23
author Charles Chan <rascov@gmail.com> 1447449158 -0800
committer Gerrit Code Review <gerrit@onlab.us> 1447870664 +0000

Carry previous host subject in HostEvent

This is an enhanced version of gerrit 6085 that provides not only the old location
but also the entire old host subject.
The main purpose is allowing apps to be aware of the change of IP address as well

Change-Id: I448d73b0d1e705996259cb0ec777f959f485d9c2