[winswitch] [ANNOUNCE] Xpra LTS 3.1.7

[Antoine Martin]

Hi,

Here is one more "final" release from the old LTS branch due to the 
large number of major bug fixes.

There are no MacOS builds for this branch, use 5.x instead.
Updating is strongly recommended for those still using the 3.1.x LTS branch.

For more details, please see:
https://github.com/Xpra-org/xpra/releases/tag/v3.1.7

Downloads:
https://github.com/Xpra-org/xpra/wiki/Download

Cheers,
Antoine