OR-653 User notification client
OR-653 Display notifications with new pagination
OR-653 Calculate pagination based on server response
OR-653 Hide buttons on first and last pages
OR-653 Add paginator module
OR-653 Paginate tests and fixes
OR-653 Create a new controller for popover
Merge pull request #457 in OR/rse from OR/rse-chamerling:OR-653-displayusernotification to master

* commit 'd16c9141be42cfe95eb7ad86aabc50f3e4759bbd':
  OR-653 Create a new controller for popover
  OR-653 Paginate tests and fixes
  OR-653 Add paginator module
  OR-653 Hide buttons on first and last pages
  OR-653 Calculate pagination based on server response
  OR-653 Display notifications with new pagination
  OR-653 User notification client