Merge pull request #1447 from nutan-gooru/dev-branch

Fixed displaying "Publisher : Publisher: " + UI issue at category title
NSDL aggregator changes implemented
Merge pull request #1448 from ssushma/dev-branch

NSDL aggregator changes implemented
implemented disconnect api
Merge branch 'dev-branch' of https://github.com/Gooru/Gooru-Web into dev-branch