Revert "collection fields cluster_uid, is_representative moved to resource table"

This reverts commit a62a63c5ba36fc270ef021c1bf88a85a7b028410.

Conflicts:
	api/src/main/java/org/ednovo/gooru/domain/service/ScollectionServiceImpl.java
Implemented changes CORE-1533
Merge pull request #539 from saravanab/master

Implemented changes CORE-1533
Merge pull request #537 from sheebans/master

Added read only session template, event, org,config settings, custom tab...
Added fix for empty folder shows up after moving public collecion out (Reopen)
changed the reurn type for add profanity API
Fixed message properties
Merge branch 'master' of https://github.com/cyrilraja/Gooru-Core-API
Merge pull request #540 from skpcharles/master

Added fix for empty folder shows up after moving public collecion out
Merge pull request #541 from cyrilraja/master

Fixed message properties
Merge remote-tracking branch 'gooru/master'