Merge pull request #171 from sheebans/master

added support for delete the tag first and re-insert again
Merge pull request #172 from sheebans/master

added user object in get classes
Added filter support for collection type
Merge pull request #173 from skpcharles/master

Added filter support for collection type
Core 777 related added event log
Merge pull request #174 from vksvenkat/master

Core 777 related added event log
added addtional fields for session item feedback