Modify TestTask to add, needs sorting to be implemented for addTaskToList in TestUtil to pass this last test case
Modify TestTask to add, needs sorting to be implemented for addTaskToList in TestUtil to pass this last test case

CS2103JAN2017-W09-B3/main,CS2103JAN2017-W09-B3/main,CS2103JAN2017-W09-B3/main