fix: copy map when getParseCallBackMap() and getParseObjectMap()
add GUIReader::registerTypeAndCallBack for std::function
replace NULL to nullptr

fix compile error
add BillBorad and BillBoardTest
Merge pull request #92 from songmiao/billboard

add BillBorad and BillBoardTest
Merge branch 'v3' of https://github.com/cocos2d/cocos2d-x into billboard

Conflicts:
	cocos/2d/libcocos2d.vcxproj.filters
	tests/cpp-tests/Classes/Sprite3DTest/Sprite3DTest.cpp
	tests/cpp-tests/Classes/Sprite3DTest/Sprite3DTest.h
Merge pull request #93 from songmiao/billboard

Billboard Merge v3
add BillBoard to iOS project
Merge branch 'v3' into customguireader
Merge branch 'v3' into customguireader
Merge branch 'v3' into customguireader
fix indent
remove resources for unused.
merge cocos
first version billboard
Merge branch 'billboard' of https://github.com/super626/cocos2d-x into billboard
temp backup
dynamic update index for quad command
add transparent queue
add triangles command, make quad command inherit from triangles command