Fixed #5700: [JSB] Fix typo of cc.radiansToDegrees
Issue #5706: Add missed extendable classes
Update submodules
Merge branch 'master' of https://github.com/cocos2d/cocos2d-js
issue #5685: fix menu _ctor bug
[js - Feature #5690]  Add js to Obj-c reflection
Merge pull request #578 from wuzhiming/master2

[js - Feature #5690]  Add js to Obj-c reflection
issue #5685: fix labelatlas _ctor bug
issue #5685: replace create with operator new
Optimize the make-package tool.
issue #5685: replace create with new in ParticleTest.js
Merge pull request #580 from joshuastray/use_new_in_sample

issue #5685: replace create with operator new
issue #5685: add _ctor for ParticleExamples
issue #5685: replace create with new in ParallaxTest.js
issue #5685: replace create with new in OpenGLTest.js
Merge pull request #582 from natural-law/master

Optimize the make-package tool.
issue #5685: replace create with new in CocosNodeTest.js
issue #5685: replace create with new in MotionStreakTest.js
issue #5685: replace create with new in MenuTest.js
Merge pull request #583 from joshuastray/use_new_in_sample

issue #5685: replace create with new