Merge pull request #7 from christianalfoni/master

Added game to all modules
Fix Grunt file directory
Change animation speed per frame by speed per seconds
Fix sound require file
Added Examples
Remove version from output build files #8
Merge pull request #9 from ellisonleao/master

Remove version from output build files #8
updated
Create CONTRIBUTING
Rename CONTRIBUTING to CONTRIBUTING.md
Update CONTRIBUTING.md
Update README.md
Update README.md
Rename LICENSE to LICENSE.md
Added width & height property on sprite
Fix Example 3
Added new examples
new build
Fix examples
Fix examples