Includes Jacob's Pull Request changes for sound as well as many improvements
in various areas of the game. I added some of the free background music from
the Unity Asset Store to the main menu. I made some performance improvements
to the SideScrollController script as well as cleaning up the code. Lots of
deletions getting rid of stuff we don't need.
Merge pull request #27 from CoryG89/master

Making some more last minute final changes