Merge pull request #159 from cs2103aug2014-w13-1c/jin/gui

Automatic scrolling and half-implemented changing of the savefile location.
Revert "Automatic scrolling and half-implemented changing of the savefile location."
Merge pull request #161 from cs2103aug2014-w13-1c/revert-159-jin/gui

Revert "Automatic scrolling and half-implemented changing of the savefil...
Fix merge conflicts from the revert
Fix scrolling