Merge pull request #313 from skpcharles/master

Added fix for Student count showing wrongly in my classes
Added fix for cache clear issue in get folder item API
Merge pull request #314 from sheebans/master

Added fix for cache clear issue in get folder item API
Fixed null pointer expection
Merge pull request #315 from sheebans/master

Fixed null pointer exception
*Fixed Null Pointer Exception for creating classpage item
Merge pull request #316 from cyrilraja/master

*Fixed Null Pointer Exception for creating classpage item
added fix for type cast issue
Merge pull request #317 from sheebans/master

added fix for type cast issue
Provided api support for sort by due date earliest
Merge pull request #318 from sheebans/master

Provided api support for sort by due date earliest
Removed cache support in getFolderitem api cal