[Notifications] Limit count to unread notifications.
[Notifications] Limit count to unread notifications.

Our side of the fix for #673.

ACChe/eigen,ppamorim/eigen,ichu501/eigen,neonichu/eigen,zhuzhengwei/eigen,mbogh/eigen,artsy/eigen,srrvnn/eigen,ashkan18/eigen,ppamorim/eigen,artsy/eigen,liduanw/eigen,ashkan18/eigen,neonichu/eigen,foxsofter/eigen,xxclouddd/eigen,ayunav/eigen,ppamorim/eigen,Havi4/eigen,Havi4/eigen,neonichu/eigen,mbogh/eigen,xxclouddd/eigen,foxsofter/eigen,TribeMedia/eigen,orta/eigen,xxclouddd/eigen,ACChe/eigen,Shawn-WangDapeng/eigen,orta/eigen,ichu501/eigen,srrvnn/eigen,gaurav1981/eigen,ichu501/eigen,gaurav1981/eigen,xxclouddd/eigen,gaurav1981/eigen,ichu501/eigen,zhuzhengwei/eigen,ashkan18/eigen,Shawn-WangDapeng/eigen,artsy/eigen,TribeMedia/eigen,Havi4/eigen,ayunav/eigen,ppamorim/eigen,gaurav1981/eigen,Shawn-WangDapeng/eigen,ashkan18/eigen,ACChe/eigen,ashkan18/eigen,liduanw/eigen,srrvnn/eigen,xxclouddd/eigen,ichu501/eigen,TribeMedia/eigen,orta/eigen,TribeMedia/eigen,Shawn-WangDapeng/eigen,mbogh/eigen,artsy/eigen,liduanw/eigen,ACChe/eigen,foxsofter/eigen,ACChe/eigen,orta/eigen,Shawn-WangDapeng/eigen,ayunav/eigen,TribeMedia/eigen,foxsofter/eigen,liduanw/eigen,ayunav/eigen,srrvnn/eigen,mbogh/eigen,zhuzhengwei/eigen,srrvnn/eigen,artsy/eigen,liduanw/eigen,artsy/eigen,neonichu/eigen,artsy/eigen,Havi4/eigen,neonichu/eigen,ayunav/eigen,zhuzhengwei/eigen,gaurav1981/eigen,foxsofter/eigen