fixed CocoStudio SceneTest crash when it quits.
Merge pull request #5465 from chengstory/fixesSceneTestCrash

fixed CocoStudio SceneTest crash when it quits.
Update CHANGELOG [ci skip]
Update the reference of the submodule "samples/Javascript/Shared".
Merge pull request #5508 from natural-law/master

Update the reference of the submodule "samples/Javascript/Shared".
Merge branch 'master' into master_nutty_modify_framework_for315