[winswitch] [ANNOUNCE] Xpra LTS 5.1.1

[Antoine Martin]

Hi,

This update to the LTS branch contains a surprisingly large number of 
fixes considering that v5.1 is only 2 months old.

Scroll encoding is disabled globally, again, as it seems to be causing 
some visual corruption, and not just with the html5 client.
The xvfb resizing bug was a long standing one, and may well explain all 
sorts of other, hard to reproduce issues.
There are other X11 and encoding related issues, especially for monitor 
and desktop modes.

For the full list of changes, see the v5.1.1 release notes:
https://github.com/Xpra-org/xpra/releases/tag/v5.1.1
The download links and installation instructions can be found here:
https://github.com/Xpra-org/xpra/wiki/Download

Cheers,
Antoine