added view for all tasks, overdue tasks, changed weekly week to view for next 7 days and changed viewing for particular week days
added more useful feedback for the user
Merge commit '26b71c80fc91c9ce07b43eecb6bb39fbcab448ad' into vani's_branch

Conflicts:
	src/todologApp/CommandView.java
Reverse wrong merge action for CommandView
View should stay there until another CommandView/CommandSearch is execute