Fix delete bugs from Controller side.
add ERROR messages for ADD and UPDATE commands.
Mark code.
Edit taskname bug
Collated files
More flexible commands
Fix "edit 3" bug
Fix "edit 3" bug
Fix bug "add today"
Fix "update 3" bug from Controller side.
Change error message to "Invalid command"
Increase height of task name text area
Merge branch 'master' of https://github.com/cs2103aug2014-w14-1j/main
enable undo and redo from the table.
fix ctrl e bug
Merge branch 'master' of https://github.com/cs2103aug2014-w14-1j/main into daryl-ui

Conflicts:
	src/UI.java