Merge pull request #2128 from suryanarayanakb/release-6.6.3.a1

Can not remove resource, need reflash the page issue fixed
My collections: issue rectified with validating youtube channel URL while editing a resource.
Merge branch 'release-6.6.3.a1' of https://github.com/Gooru/Gooru-Web into release-6.6.3.a1
DO-5934 issue has been fixed.
Merge pull request #2130 from VinRudramurthy/release-6.6.3.a1

My collections: issue rectified with validating youtube channel URL while editing a resource.
Merge pull request #2131 from shivalinga/release-6.6.3.a1

DO-5934 issue has been fixed.
"1.0.d [Player] Extra space: between user name and ! sign Changs Updated"
Merge remote-tracking branch 'upstream/release-6.6.3.a1' into release-6.6.3.a1
Merge pull request #2132 from sravanthi1/release-6.6.3.a1

1.0.d [Player] Extra space: between user name and ! sign changes updated
Folders: If there is only 1 folder/collection is available, made invisible reorder container.
Merge branch 'release-6.6.3.a1' of https://github.com/Gooru/Gooru-Web into release-6.6.3.a1
Merge pull request #2134 from VinRudramurthy/release-6.6.3.a1

Folders: If there is only 1 folder/collection is available, made invisible reorder container.
not logging parent eventId in collection end
event issue has been resolved.
Added previous button to the Flag information popup.
Merge branch 'release-6.6.3.a1' of https://github.com/Gooru/Gooru-Web into release-6.6.3.a1
Merge pull request #2137 from mitraj/release-6.6.3.a1

Added previous button to the Flag information popup.
Merge pull request #2136 from shivalinga/release-6.6.3.a1

not logging parent eventId in collection end event issue has been resolved.
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
"Collaborator should be able to delete comments implemented"