Code review comment for lp:~dimitern/juju-core/001-upgrade-charm-filter-restart-watchers

*** Submitted:

uniter: WantAllRelationsEvents() filter

This is the first CL in preparation for the
implementation of upgrade-charm. Here, we'll
prepare the Uniter to handle upgrades better,
by restarting the relations watcher in the
filter, when requested with WantAllRelationsEvents().

R=fwereade, TheMue
CC=
https://codereview.appspot.com/7373046

https://codereview.appspot.com/7373046/