Prepare merge
Merge branch 'master' of https://github.com/cs2103aug2014-f11-1j/TaskCommander.git
Adjusted display methods in Controller

Adjusted customized display feature to support the new flow between UI
and Controller.
Added new variables to Controller which memorize the latest display
settings.
Refactored other methods in Controller.
Merge branch 'master' of
https://github.com/cs2103aug2014-f11-1j/TaskCommander.git