sauerbraten: 2020-12-04 -> 2020-12-27
sauerbraten: 2020-12-04 -> 2020-12-27

Bumped version because 2020-12-04 is not available on mirrors.
Tested server and client on NixOS x86_64 with sway/wayland.
Played some rounds with old and new maps on public servers.

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