* [libcocos2d.vcxproj, libcocos2d.vcxproj.filters] Removed entries for non-existent files that were causing "Build is out of date" issues in Visual Studio
[project.pbxproj] Removed entries for non-existent file
* [libcocos2d.vcxproj.filters] Renamed CCStencilStateManager.h extension to .hpp.
* [libcocos2d.vcxproj, libcocos2d.vcxproj.filters] Removed entry for file CCDownloaderImpl.h which does not exist.
* Changed extension of CCStencilStateManager.hpp to .h
rh101