Windows Installer for Testing

[Richard Kimberly Heck]

Windows installers for 2.3.1 are at
http://ftp.lyx.org/pub/lyx/devel/lyx-2.3/. Please let me know if you
have any problems. But I know there are some weird issues with MiKTeX
right now, and I've seen signs of that in my own testing.

Riki