Upgrading project to VS2013 express. 2012 was causing my computer to freeze.  I assuem b/c it was a 32 bit install and had compatability issues.
Lots of changes

-Moved to VS2010 to try and get rid of the crashing.  Seems to have
worked now that I disabled Inteillisense and AutoRestore.
-Moved entities to use a TileRenderComponent rather than a
RenderTileObject. Once Maps have their own rendercomponent, we should be
good on that part of the refactor.
-Added a new GameLoop file to separate entry point and our loop.  This
was to get around an issue with VS freaking out about main and SDL code
being in the same file.  I dunno, but I'll need to do this at some
point.
-With the new TileRenderComponent (and other components as well), We can
now have the entity own it's position rather than the RenderTile.  This
makes far more sense and will help down the line with logical objects
that have no renderable image to speak of.