Merge pull request #2126 from sravanthi1/release-6.6.3.a1

1.0.d [Player] Extra space: between user name and ! sign Fixed.
Can not remove resource, need reflash the page issue fixed
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.
Merge remote-tracking branch 'upstream/release-6.6.3.a1' into release-6.6.3.a1