Additional notifications count just for mentions.
Tired of clicking on the notifications tab when you have tons of new notifications, only to see likes, re-posts, and follows, but no new mentions to reply to?
This script adds an additional notifications count that only counts mentions.
Fixed error when script loads before Pusher (01/07/2017)
Fixed error when script loads before jQuery (12/30/2016)
Fixed bug with certain types of script managers loading the script too early. (11/13/2016)
