Merge pull request #397 from skpcharles/master

Fixed issue in create collection API
Added methods to get upperbounds for search
Rover-117 Delete access token and refresh token cookie
Merge pull request #399 from PurnimaGS/master

Rover-117 Delete access token and refresh token cookie
Merge pull request #398 from RenukaGurumurthy/master

Added methods to get upper bound of contents for search module
Restored findByRemeberMeToken method