Updated Resolution, removed extraneous files

The game now defaults to (and always renders at) 1366 x 768.

It should just automatically scale to the user's screen (tested with
various resolutions on my computer). I have not tested using a screen
that is actually a different resolution, I have only experimented with
lowering my system resolution.

I also removed build directories and directories from the various
releases during EECS 481 that no longer serve a purpose. I will be
committing a .gitignore for build dirs next.
Added .gitignore

Note that custom settings, scores, mazes and screen shots are saved in
/MazeAndBlue/MazeAndBlue/bin/ right now, so those will be lost when
pulling this commit. I suggest copying your existing bin folder and
replacing it after the pull.