Merge pull request #298 from cyrilraja/master

*DO-4763 6.3 [System] gmail connect user does not receive Welcome email anymore
Fixed GetResourcesByTag api is giving 500 error
Merge pull request #300 from skpcharles/master

Fixed GetResourcesByTag api is giving 500 error
added clear cache snippet while doing move collection
Merge pull request #301 from sheebans/master

added clear cache snippet while doing move collection
*Fixed Null Pointer Exception in getUser