Added sendNewReviewNotification to the notifications helper.
Added sendNewReviewNotification to the notifications helper.

This is to be used for messaging ReviewFollowers.

Patch by: Lennard de Rijk
Reviewed by: to-be-reviewed

MatthewWilkes/mw4068-packaging,MatthewWilkes/mw4068-packaging,MatthewWilkes/mw4068-packaging,MatthewWilkes/mw4068-packaging