Changed the Atlas to be an instanced class (not static) and added it into the base Scene class (so each Scene can have its own atlas).
Removed lib.si.Grid (use EntityGrid instead)
Fixed a bug in the Motion class (ar was NAN, causing inMotion to remain true)
Fixed a bug in PhysicsTestScene that had entities added to the pool multiple times
Made switching between scenes cleaner
More...
Merge branch 'master' of https://github.com/fidgetwidget/haxe_sge