Merge pull request #399 from VinRudramurthy/dev-branch

Collection delete issue fixed when created in player and opened the same from player.
Fixed : [My Classes] Class links at bottom of "My Classes" logged out page go to wrong page & have wrong images
Added new images.
Merge pull request #400 from anilgooru/dev-branch

Fixed : [My Classes] Class links at bottom of "My Classes" logged out page go to wrong page & have wrong images
Fixed : [My classes]While teacher edit the the class page name it didn't display the (Owner) or (Joined) in class page list
Merge remote-tracking branch 'upstream/dev-branch' into dev-branch

* upstream/dev-branch:
Merge pull request #401 from anilgooru/dev-branch

[My classes]While teacher edit the the class page name it didn't display the (Owner) or (Joined) in class page list
Rating issue fixed for under 13 years.
Merge branch 'dev-branch' of https://github.com/Gooru/Gooru-Web into dev-branch