Testing MultiTouch
Now properly draws coords currently being touched.  Still no multitouch working on my device (2 fingers results in the touch event being fired for the coords in the center of my 2 fingers - also looks like only one Touch.identifier is being used)
Working on scrolling tile maps.  Basic setup.
Drawing 1 tile
Drawing *partial* first tile
1st stab at smooth, sub-tile scrolling
setup for testing
Playing around with some specs for GameMap/TileMap/Viewport types of classes to make scropping/rendering simpler to understand and easier to reuse
Merge branch 'master' into gh-pages