fix LabelAtlas constructor to CC_CONSTRUCTOR_ACCESS
use CC_CONSTRUCTOR_ACCESS in ParallaxNode
protected -> CC_CONSTRUCTOR_ACCESS
Merge pull request #77 from pandamicro/v3_assets_manager

[Downloader] Fix C++11 incompatible issue on Visual Studio
Merge pull request #78 from joshuastray/fix_constructor_access

Fix constructor access
Update submodules
Issue #5781: Update cocos2dx_files.json