add calculate aabb
Merge branch 'newcode' into v3.3
Camera3D works for one camera
one Camera work
sort camera, not finished
cameratest work
remove get&setActiveCamra
Merge pull request #73 from songmiao/v3.3

modify collison samlpe
camera work
camera work
Merge branch 'v3.3' of https://github.com/super626/cocos2d-x into v3.3
wrong indent
code standard
camera simplify
get bounding box
Merge code
modify the function "updateMinMax"
set content size
Merge pull request #70 from lvlonggame/v3.3

V3.3
modify collison sample and add pickup sample