reduce useless convert
fix crash related to not support the z length modifier for size_t on vs
Merge pull request #4497 from zhiqiangxu/develop

closed #3559: Useless conversion in ScrollView::onTouchBegan
Update AUTHORS [ci skip]
Update CHANGELOG [ci skip]
Merge pull request #4759 from Dhilan007/develop_crash

fix crash related to not support the z length modifier for size_t on vs
[Win32] Update project files.
- lIbGUI
Merge pull request #4776 from pyrasis/develop

[Win32] Update project files.
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into DispatcherBak1