Allows other classes to change Table view to SearchView and AllView from PhantomController.
Edited CommandLineController to give input to a LogicFacade class
Debugged PhantomController not getting CommandLineController refrence.
Added single word parsing functionality.
Fixed minor bugs with repeated keywords. Example: ("by wed by tues by fri")
Will only take the first instance now.
added Stack class to Storage for undo and redo.
Added methods to Command.
Modified TaskList.
Merge remote-tracking branch 'origin/yongkai'
Merge remote-tracking branch 'origin/jiashun'
Merge remote-tracking branch 'origin/krystal'