Merge pull request #2101 from ssushma/release-6.6.3.a1

Messaging changes implemented
QA [My Collections] Add course pop-up blocking further flow of user issue resolved
Merge branch 'release-6.6.3.a1' of https://github.com/Gooru/Gooru-Web into release-6.6.3.a1
Merge pull request #2103 from mitraj/release-6.6.3.a1

QA [My Collections] Add course pop-up blocking further flow of user issue resolved
Character limits Message is Incorrect for Explanations issue resolved.
Merge branch 'release-6.6.3.a1' of https://github.com/Gooru/Gooru-Web into release-6.6.3.a1
"6.6.a [Player] Previous resource publisher name is displayed in next resources Fixed"
Merge remote-tracking branch 'upstream/release-6.6.3.a1' into release-6.6.3.a1
Merge pull request #2104 from mitraj/release-6.6.3.a1

Character limits Message is Incorrect for Explanations issue resolved.
Merge pull request #2105 from sravanthi1/release-6.6.3.a1

6.6.a [Player] Previous resource publisher name is displayed in next resources Fixed.
reenabled access to stories.
Merge remote-tracking branch 'upstream/release-6.6.3.a1' into release-6.6.3.a1

* upstream/release-6.6.3.a1:
  "6.6.a [Player] Previous resource publisher name is displayed in next resources Fixed"
  Character limits Message is Incorrect for Explanations issue resolved.
Merge pull request #2106 from anilgooru/release-6.6.3.a1

reenabled access to stories.
Added character limit error msg for Learning objective in collection Info
Merge branch 'release-6.6.3.a1' of https://github.com/Gooru/Gooru-Web into release-6.6.3.a1
disabled access to gooru stories.
Merge remote-tracking branch 'upstream/release-6.6.3.a1' into release-6.6.3.a1

* upstream/release-6.6.3.a1:
Merge pull request #2108 from anilgooru/release-6.6.3.a1

disabled access to gooru stories.
Merge pull request #2107 from mitraj/release-6.6.3.a1

Added character limit error msg for Learning objective in collection Info.
Message properties changes for add role popup