Multiple Scroll issues fixed on closing the popups.
Merge remote-tracking branch 'upstream/dev-branch' into dev-branch

* upstream/dev-branch:
  Study palyer new user interface has been implemented partially.
  Implemented, need to show end time and end page + have error message if beyond length
  Player modification is in progress.
  Navigation bar has been implemented.
  study player has been modified partially.
Merge pull request #971 from anilgooru/dev-branch

Multiple Scroll issues fixed on closing the popups.