Got rid of gross comments

Purely aesthetic.
Changed drawing and added Location methods

Drawing now begins at the bottom left and goes from left to right,
bottom to top, until ALL ITEMS ON THE MAP HAVE BEEN DRAWN. Not just
those that fit onto the allotted square string. This will allow for
smoother transitions between scenes. Also, methods were added to the
Location class to allow for its manipulation without creating a new
Location. This was created with the TileTravelerScreen's origin in mind
(ie, origin.moveNorth(SCREENDIM) when the player moves offscreen to the
north).