how to binding custom class in cocos2dx 3.0 and is have cocostudio binded in 3.0

i dont find the *.pkg and tolua++ .so how to binding ours custom class
and
is cocostudio binded for lua in cocos2dx 3.0

The cocos2dx 3.0 uses the bindings-generator to bind the custom class.you should see tools/tolua/genbindings.sh,and then add the class declare to the cocos2dx.ini or cocos2dx_extension.ini.
The cocostudio will be bound in cocos2dx 3.0 as soon as possible,the feature was already built,you can see the Feature #2868