Folders: Added comments at missing places.
Merge branch 'release-6.6.3.a1' of https://github.com/Gooru/Gooru-Web into release-6.6.3.a1
Merge pull request #2140 from sravanthi1/release-6.6.3.a1

"Collaborator should be able to delete comments implemented"
Merge pull request #2139 from VinRudramurthy/release-6.6.3.a1

Folders: Added comments at missing places.
status code related popup has been implemented.
Merge branch 'release-6.6.3.a1' of https://github.com/Gooru/Gooru-Web into release-6.6.3.a1
Merge remote-tracking branch 'upstream/release-6.6.3.a1' into release-6.6.3.a1
Merge pull request #2148 from sravanthi1/release-6.6.3.a1

1.0.c [Search] Class info Details are displayed in Collection player,when collection played from search
fixed data log path attribute value issue.
Added search keyword in the data log event.
Merge pull request #2150 from ssushma/dev-branch

assigning to unit feature enabled back.
Merge pull request #2151 from ssushma/dev-branch

Changes from 6.6.a3 branch integrated
"Update Kindergarten Course thumbnails on registration popup Fixed"
Merge remote-tracking branch 'upstream/release-6.6.3.a1' into release-6.6.3.a1
Merge pull request #2152 from sravanthi1/release-6.6.3.a1

Update Kindergarten Course thumbnails on registration popup Fixed.
Merge branch 'release-6.6.3.a1' of https://github.com/Gooru/Gooru-Web into release-6.6.3.a1

Conflicts:
	src/main/java/org/ednovo/gooru/client/mvp/play/collection/CollectionPlayerPresenter.java
Class info player issues merged from 6.6.a3 branch