###### Motivation for this change
Update to latest upstream version
###### Things done
* [ ] Tested using sandboxing ([nix.useSandbox](http://nixos.org/nixos/manual/options.html#opt-nix.useSandbox) on NixOS, or option `sandbox` in [`nix.conf`](http://nixos.org/nix/manual/#sec-conf-file) on non-NixOS linux)
* Built on platform(s)
* [x] NixOS
* [ ] macOS
* [ ] other Linux distributions
* [ ] Tested via one or more NixOS test(s) if existing and applicable for the change (look inside [nixos/tests](https://github.com/NixOS/nixpkgs/blob/master/nixos/tests))
* [ ] Tested compilation of all pkgs that depend on this change using `nix-shell -p nix-review --run "nix-review wip"`
* [x] Tested execution of all binary files (usually in `./result/bin/`)
* [ ] Determined the impact on package closure size (by running `nix path-info -S` before and after)
* [ ] Ensured that relevant documentation is up to date
* [x] Fits [CONTRIBUTING.md](https://github.com/NixOS/nixpkgs/blob/master/.github/CONTRIBUTING.md).
###### Notify maintainers
cc @blitz @Ma27 @tfc @worldofpeace
It was restricted in 40b347f2051b158e4d077eb95eff02df8a65524f due to its
need for the SSE2 instruction set. However the upstream issue is now
resolved [1], so reenable support for all platforms.
[1] https://github.com/chrjguill/i3lock-color/issues/44
The desktop item was referring to "$out/bin/xonotic" as executable, but
since it's built in its own derivation now, "$out" did not contain the
xonotic wrapper.
Since it seems to be common practise to use a relative path, I changed
it to do that here as well.
As @lopsided98 points out in #105305, since the hashes are now target
sensative, and until we find reason to actually care to test what they
are exactly, we are best just normalizing them away in the tests.
Since people regularly open reports about tracker search not working because
python is not found.
And since Tracker Search in qBittorrent can not be disabled & at the same time
the Pythong is needed for it to work - including Python for default
functionality to work.
