3daa739e13 took care of firing the ref-updated event for updates via the
web UI access pane, but not changes via the web UI general pane, which
uses the REST 'PUT /projects/:project-name/config' endpoint. This commit
takes care of that case, as well as the REST
'PUT /projects/:project-name/description' endpoint.
Note: there's still no ref-updated event for the case of changing a
project from "hidden" state back to read-only or "active" as hooks are
suppressed for hidden projects deeper in the code.
Bug: Issue 2571
Change-Id: I0a260011c0968193ccb5900a18935e654d25f042
701218b8d0