basic project cleanup
added new tiles
some more cleanups (removed unneeded marching squares helper, removed level2
main.js cleanup, collection helper enhancements
box2d game enhancement to load collisions from polygons
illuminated light manager enhancement to load blocking bodies from polygons
ported Convex Separator for Box2D Flash to javascript to generate convex polygons from concaves
implemented 'boxmeister', a weltmeister editor addition that allows to create collision layers based on polygons and points, which allows smooth slope creation
updated level1, updated README