Gravity!!!
Temp. Observable implementation.
Events.js
Fixed event dispatching and added some documentation.
WIP
WIP
WIP
Merge branch 'Gravity_fields' of https://github.com/ernestaszdanys/freefall into Gravity_fields

Conflicts:
	game/index.html
	game/js/body.js
	game/js/game.js
	game/js/index.js
	game/js/observable.js
	game/js/rendering.js
	game/js/shape.js
WIP
WIP
WIP
Upgraded SpatialMap.js, added images, multiple other small changes...
Created Dynamic behaviour classs...
Various changes to shape (now renamed to geometry), body and game files, merged variuos branches, loader.
Merge branch 'Gravity_fields'

* Gravity_fields:
  Various changes to shape (now renamed to geometry), body and game files, merged variuos branches, loader.
  Created Dynamic behaviour classs...
  Upgraded SpatialMap.js, added images, multiple other small changes...
  WIP
  WIP
  WIP
  WIP
  WIP
  WIP
  Fixed event dispatching and added some documentation.
  Events.js
  Temp. Observable implementation.
  Gravity!!!

Conflicts:
	game/index.html
	game/js/body.js
	game/js/game.js
	game/js/gui.js
	game/js/index.js
	game/js/level.js
	game/js/physics.js
	game/js/shape.js
	game/js/text.js
	game/js/vector.js