Closes#3950
- Fixed up event attachment and removal in a few mixins
- Renamed content-list-content-view to something more understandable
- simplify transition from posts.index to posts.post
closes#3222
- implementing server-side pagination for /users API
- passing /users?limit=none will return all users
- passing /users?status=invited will filter base on user status
- creating 3 mixins (route, controller and view) to keep pagination logic DRY
- updating route, controller and view for Posts to use new mixing
- implementing infinite scrolling for Users Management screen (using new mixins)
- Users Management screen displays all invited users, but paginates active users