WinRT: noted Win10/UWP support in WhatsNew.txt (under 2.0.4)

WinRT: made WinRT build script create Win10/UWP .dll files

Add Logitech F510 Gamepad Direct input mode mapping

Removed some debug prints.

Mac: Fixed SDL_SetWindowFullscreen not restoring the window's original size when exiting a Space.

WinRT: added Win10/UWP (Universal Windows Platform) support "UWP" appears to be Microsoft's new name for WinRT/Windows-Store APIs. This set of changes updates SDL's WinRT backends to support the Win10 flavor of WinRT. It has been tested on Win10 on a desktop. In theory, it should also support Win10 on other devices (phone, Xbox One, etc.), however further patches may be necessary. This adds: - a set of MSVC 2015 project files, for use in creating UWP apps - modifications to various pieces of SDL, in order to compile via MSVC 2015 + the Win10 API set - enables SDL_Window resizing and programmatic-fullscreen toggling, when using the WinRT backend - WinRT README updates

WinRT: bug-fix - SDL_SetThreadPriority() didn't work on WinRT 8.x platforms WinRT 8.0 (Phone and non-Phone) didn't offer an API to set an already-created thread's priority. WinRT 8.1 offered this API, along with several other Win32 thread functions that were previously unavailable (in WinRT). This change makes WinRT 8.1+ platforms use SDL's Win32 backend.

WinRT: minor code cleanup in window-creation code Window flags can be detected on all WinRT platforms.

WinRT: native windows are inherently resizable (in WinRT 8.x)

WinRT: bug-fix, fullscreen mode wasn't getting reported in Windows 8.0 apps This bug did not occur in Windows 8.1 apps, just Windows 8.0.