LyX 2.3.4 Windows Installer for Testing

[Richard Kimberly Heck]

Hi, all,

I've put a Windows installer here

    http://ftp.lyx.org/pub/lyx/devel/lyx-2.3/LyX-234-Installer-1.exe

for testing. The main thing is that I've updated Image Magick and,
frankly, am not at all sure I've done so correctly. It did manage to
export the User Guide, but I haven't tested preview, etc. Please let me
know if it's working properly. I'll plan to do the release mid-week if so.

Riki