Update to Wine 3.12. This includes the following changes:

• Unicode data updated to Unicode 11.0.0.
• Proxy configuration dialog in the Internet control panel.
• Syntax fixes in the Cmd.exe command intepreter.
• Some more glyphs in the Wingdings font.
• Various bug fixes.

Align the sorting of MASTER_SITES with the emulators/wine port again,
now that SF is regularly updated again.