First commit
Adding invaders (WIP)
Aliens moving and shooting
Adding collisions and score
Fixing player size
First playable version
Adding dist folder and making grunt to copy resources
Finish 0.1

Conflicts:
	.gitignore
	Gruntfile.js
	app/index.html
	app/scripts/game.js
	app/scripts/sound.js
	app/styles/main.css