and other best pracitces like:
capacity and "index" are ints and not unsigned int (google's recomendation).
It is easier to detect underflow bugs like this
plus other minor improvements
with four spaces. Also,
1. Used macro NS_CC_BEGIN instead of namespace cocos2d {, NS_CC_END instead
of }.
2. Removed some unused files.
3. Renamed the name of some folders, for example,
"test.android"-->"proj.android" .