Added mouse over event for icon.
Merge remote-tracking branch 'upstream/dev-branch' into dev-branch

* upstream/dev-branch:
  Rectified compilation issues.
  What next collection showing issue has been fixed.
Merge pull request #1041 from anilgooru/dev-branch

Added mouse over event for icon.
Added mouse over event for icon.
Merge remote-tracking branch 'upstream/dev-branch' into dev-branch

* upstream/dev-branch:
  changed reviews ui in resource player info page.
Merge pull request #1042 from anilgooru/dev-branch

Added mouse over event for icon.
Changed background color of search filter to white
Changed resource names from plural to singular
Merge pull request #1044 from SurabhiSeetharam/dev-branch

Changed background color of search filter to white
Added new 404 html file.
Merge remote-tracking branch 'upstream/dev-branch' into dev-branch

* upstream/dev-branch:
  Changed resource names from plural to singular
  Changed background color of search filter to white
Merge pull request #1045 from anilgooru/dev-branch

Added new 404 html file.
Implemented : Add OER Tag in search results
Merge remote-tracking branch 'upstream/dev-branch' into dev-branch

* upstream/dev-branch:
Merge pull request #1046 from anilgooru/dev-branch

Implemented : Add OER Tag in search results
Implemented change Mobile Friendly Tag
call refersh event for workspace
Enabling window scroll on adding question fixed.
Merge pull request #1047 from nutan-gooru/dev-branch

Implemented change Mobile Friendly Tag
added new class for 500 error.