implement md2 file loader
add win32 project.
Added bmp texture format support, added CCSprite3D node.
simplify some codes
render --> draw.
Added CCAnimate3D, but not works.
Updated .
Merge branch 'gles20' into 3d-model

Conflicts:
	samples/Cpp/HelloCpp/proj.ios/HelloCpp.xcodeproj/project.pbxproj
Moved model resources.
3d commit.
Merge branch 'gles20' of https://github.com/cocos2d/cocos2d-x into 3d-model
Merge branch 'gles20' of https://github.com/cocos2d/cocos2d-x into 3d-model
Merge branch 'gles20' of https://github.com/cocos2d/cocos2d-x into 3d-model

Conflicts:
	samples/Cpp/HelloCpp/proj.win32/main.cpp
Updated cocos2d-js-tests.
Updated ios project.
VNode&VLayer updates
CCPhysicsSprite: avoid crash if body is NULL
add IntelliJ files to gitignore
CCBReader: init mCCBRootPath
Merge branch '3d-model'

Conflicts:
	cocos2dx/actions/CCActionInterval.cpp
	cocos2dx/base_nodes/CCNode.h
	cocos2dx/platform/CCImage.h
	cocos2dx/platform/CCImageCommon_cpp.h
	cocos2dx/proj.ios/cocos2dx.xcodeproj/project.pbxproj
	cocos2dx/proj.win32/cocos2d.vcxproj.filters