Fixed assignment sorting issue in student view.
Remove timer for mouseover.
Merge remote-tracking branch 'upstream/dev-branch' into dev-branch

* upstream/dev-branch:
  libray tooltip  issue has been fixed
  Changed the logic for blocked user.
  Fixed Course is push down and hidden under the save and submit button
Merge pull request #731 from anilgooru/dev-branch

Fixed assignment sorting issue in student view.