Revert "Revert "Merged suhas and bsharanya s code""
Merge pull request #5 from niloa/revert-4-revert-3-master

Revert "Revert "Merged suhas and bsharanya s code""
Added listing for assingments after tag selection
Refactoring some parts of the code
adding some more functionality to displaying assignments
Added functionality for assignment details display and search filtering
merged niloa-master