Added idea project; changed GameObject to Container that has an image; added a HUD class
Added scrolling background, auto-resize
Load shiplist from assets/ships.json
Particle system

basic particle system in place that makes use of spritesheet anims
Added basic engine glow capability
Changed preloader to auto-load all images. For now only json files need to be statically specified in the manifest
Working on abstracting Screen away from SpaceDominationGame