Merge pull request #5 from ekt7be/master

Changed .gitignore
Added new sprites for fireball and bullet. Healing sprite added, but still needs work. AnimationHelper class added, but incomplete.
Added sprites and AnimationHelper class
animation class, damage animation, skeletons use sword
movement buffered and float based movement
added willcolide method to help pathfinding
changed pause menu quit to actually quit and fixed viewport issues