Code review comment for lp:~charlesk/indicator-datetime/always-get-initial-tzid-from-timedate1

Thanks for the feedback. Since both of you commented on the clumsiness of m_connection and m_subscription's state management, I've cleaned it up in r446..448 by passing the GDBusConnection* in the ctor.

This way we can unconditionally watch & subscribe in the ctor, then unconditionally unsubscribe and unwatch in the dtor, no edge cases or having to check to see if the pointers exist yet. :)