first attempt to bind functions onKeyDown
Merge branch 'dev' of https://github.com/sunriseJS/sunriseJS into dev

# By JGerdes
# Via JGerdes
* 'dev' of https://github.com/sunriseJS/sunriseJS:
  Added / removed packages to / from core modules array
  Made some attributes of Sprite private
  fixed: ressourceLoader removed data from game config object
  Added missing brackets, improved readability
  Adapted Entity.js for new inheritance system
  Sprite figures width, height, etc out by itself, no need for spriteManager anymore
  Adapted new object syntax
  Created CoreObject
  added sprite.js to loading list in sunrise.js
  extracted sprite from spritemanager