The HipChat plugin has changed a good bit in version 0.1.9 such that it
is now purely using the publisher hook and it's acquired a few new
configuration items.
This patch ensures used of the existing format will be automatically
redirected to the newer publisher module which adds support for 0.1.9.
Change-Id: I39452e877b20bfc5654d46c90e91dd877a8ebeb0
Story: 2000301
Story: 2000324
f1bae173ff