Merge pull request #785 from skpcharles/master

More improvements on getCollection API with cache support
delete API call for Assessment Integration
Merge pull request #786 from prakashraja89/master

Delete API call for Assessment Integration
CORE 2122 - added organization support for application
CORE 2122 render userServiceImpl to check admin roles
CORE 2122 mode changes
Merge pull request #787 from anand1711/master

CORE 2122 - added organization support for application.
Added validation for 500 error in UpdateCollection
Merge remote-tracking branch 'gooru/master'
Changed data for DO-5502 for Teacher's OE feedback does not show up at Student Summary page
Merge pull request #789 from yamunaBQ/master

Added validaton for 500 error in UpdateCollection
Fixed 500 issue in delete resoure and getUserAvailability APIs