Created JUnit test case for Category class
Added setUp() method to Category test case
Cut and paste existing test methods from CommitmentTest into CategoryTest
Merge branch 'feature/Tests' of https://github.com/CS3733Team1/wpi-suite into feature/Tests
Lots of repairs:

isTeam variable in DeletableAbstractModel class.
Owner String, to represent owner.

Both should be set on the serverside.
Also, changes to List Models to have the backing list be synchronized
using collections.synchronizedSet()
I hope this will prevent race conditions. Supposedly such a List is theadsafe.

Also changes to EventEntityManager
so that the made events get an owner and a UniqueID
that is truly unique, set on ther server.
more of the same
More fixes
Revert "More fixes"

This reverts commit 742ef526f808ef74e9f11a315c0e8bdc65efb3b5.
fix delete entities
Fix delete events for real
More fixes to various entity managers
Entity manager updates to set OwnerID number, OwnerName and UniqueID
Changes to add OwnerID and OwnerName variables to database objects. Also minor merge conflict resolution in entity managers.
tooltip in weekview for viewing commitments now works
Merge branch 'dev' of https://github.com/CS3733Team1/wpi-suite into feature/WeekView
Fixed tooltip on day and week views for viewing commitments
Changed layout of navigation buttons, Month View updates
Added comments to stuff in the model package
Merge branch 'dev' of https://github.com/CS3733Team1/wpi-suite into dev
small changes in the  multi event week view