Ajout de la lib prototype
Ajouté le charset a l'index
Ajout gamescreen.js
Game codé close #1
Merge remote-tracking branch 'chamox/master'
ajout prototype dans index.html
Gamescreen.js
Merge remote-tracking branch 'thomas/master'
Modification GameEntity
Merge https://github.com/Team-image-intensif-2014-2015/projet-intensif-image-2015
Ajout balise infiniteBackground + LevelScreen

Ajout infiniteBackground.js + LevelScreen.js