* use symbols not strings for element labels
* use double quotes except where single quotes required
Change-Id: I4eef50206c526611da535e529035c076d5bce266
Also adds browser tests for the behaviour of the mark all as read button
to ensure it only clears message notifications.
Dependency: Ifb7b1b7b7feb4a5af65c79bb16b91a5a9c70166c
Change-Id: I46e1de229e32d705e67cebde678ecea3f3633906