Merge pull request #594 from anilgooru/dev-branch

Fixed known issues.
Fixed issue with displaying math symbols as options in the player.
Merge branch 'dev-branch' of https://github.com/Gooru/Gooru-Web into dev-branch
"Handled publish status value when change visiblity from public to private/sharable"
Merge branch 'dev-branch' of https://github.com/Gooru/Gooru-Web into dev-branch
Merge pull request #595 from mitraj/dev-branch

Handled publish status value when change visibility from public to private/sharable
Fixed issue with displaying math symbols in multiple answers.
Merge branch 'dev-branch' of https://github.com/Gooru/Gooru-Web into dev-branch
Merge pull request #596 from VinRudramurthy/dev-branch

Fixed issue with displaying math symbols as options in the player.
Handled null pointer exception.
Fixed window scroll issue.
Added ... for class page title.
Fixed array index out of bound exception.
Merge remote-tracking branch 'upstream/dev-branch' into dev-branch

* upstream/dev-branch:
  Fixed issue with displaying math symbols in multiple answers.
  "Handled publish status value when change visiblity from public to private/sharable"
  Fixed issue with displaying math symbols as options in the player.