added Node::getCascadeBoundingBox()
replaced "NULL" with "nullptr"
moved getCascadeBoundingBox() to utils
call getCascadeBoundingBox() properly
Fixed compile error when I turned off physics definitions.

Fixed the following compile error.
cocos2d\extensions\physics-nodes\ccphysicssprite.cpp(305): error C4716:
'cocos2d::extension::PhysicsSprite::getRotation' : must return a value
and more..

Conditions:
CC_USE_PHYSICS = 0
CC_ENABLE_CHIPMUNK_INTEGRATION = 0
CC_ENABLE_BOX2D_INTEGRATION = 0
Using CC_ENABLE_CHIPMUNK_INTEGRATION and CC_ENABLE_BOX2D_INTEGRATION instead of CC_USE_PHYSICS
Fixed my mistakes - preprocessor.
Update lua bindings for Mesh and add a Sprite3DHitTest
New Audio Engine -MAC
update lua binding
update project
fix noise on mac
Cocos2d-x used a deprecated method to get the content size of a CCLabelTTF on iOS 7.
openUrl function for all platform but on windows RT empty function
Added method for converting from std::string to Platform::String.
Windows Phone 8 can now open URLs.
Added tests for opening a URL.
Tests for Mac/iOS android Linux & Windows
Merge pull request #1 from cocos2d/v3

- fastforward
* added default value for _batchNode in CCSprite