Merge pull request #611 from parthibane/master

Commentted kafka index queue producer code temp
*Improvements on CORE-1642 Get associated assignments for a particular pathway
*Adding orderBy Sequence support for getPathwayItems
added comment support for class pathway
Merge pull request #613 from skpcharles/master

added comment support for class pathway
Implemented DO-5526(6.6.a [My Collections - Collaborator] for new user account, My Collections showing issues)
resolved conflicts
Merge pull request #612 from cyrilraja/master

*Improvements on CORE-1642 Get associated assignments for a particular p...
Merge pull request #614 from saravanab/master

Implemented DO-5526(6.6.a [My Collections - Collaborator] for new user a...
*improvents on filtering through limit and offset for getPathwayItems
fixed session item fetch query cross join issue
Merge pull request #615 from cyrilraja/master

*improvents on filtering through limit and offset for getPathwayItems
Merge remote-tracking branch 'gooru/master'
added validation for null pointer issues
Merge pull request #616 from skpcharles/master

fixed session item fetch query cross join issue
Fixed DO-5526(6.6.a [My Collections - Collaborator] for new user account, My Collections showing issues)
Merge pull request #617 from saravanab/master

Fixed DO-5526(6.6.a [My Collections - Collaborator] for new user account...
More changes on get classpage with path item API
Merge pull request #619 from skpcharles/master

More changes on get classpage with path item API
added itemCount support in getpathwayitems API