refact reskin test code
* fixed android crash that a Label instance add to an invisibility parent node.
* added a testcase for issue #9255
fix linux
Merge branch 'newcode' into fixsprite
Merge pull request #9168 from super626/fixsprite

refact reskin test code
[ci skip] Update CHANGELOG
Fixed fail to play background music again after invoking stopBackgroundMusic
Merge pull request #9340 from Dhilan007/v3-33rc1

Fixed fail to play background music again after invoking stopBackgroundMusic
remove travis ci notification by email
Merge pull request #9265 from shrimpz/fix_label_crashed_on_android

Fix label crashed on android #9255
[ci skip]Update Authors
[ci skip] Update CHANGELOG