Categories

add push notifications for thread answersadd push notifications for thread answers

v0.35
* added 'category scanner' for new topics functional

---
Extension provide new feature: 'follow by push' in Laracasts discuss.
Extension check in background all threads, whitch you are subscribed for and if finds new updates -- push to you notifications.

* checks every 30 seconds
* autoremoved subscribeds, when no update 3 days

if you have any troubles, you can create new issue on project github. PR also welcomed