Update aliceml to use git version of Alice ML

This allows 64 bit builds of Alice ML and removes the need for old
versions of gcc to build.

The license is changed to 'mit' from the 'bsd' that it was previously
as the COPYING files in the alice and seam repositories appear to be
the modern style MIT variant (also known as the ICU variant).

Added myself as the maintainer.
new package: xwayland
update weston: add xwayland support
pythonPackages: add fig
Packaged cloud-init and its dependencies
Added the cloud-init service
eduke32.nix: disable libpng (can't build with it)
nixos: configure samba and rsync shares with sets
Skip nonreproducible Util test in paramiko
Add paramiko test removal comment
j: Fix building libj.so
qemu: 2.0.0 -> 2.2.0

Additionally, add support for more external features as well as more
sound system types.
Add mimms, an mms (e.g. mms://) stream downloader
Erlang bump from 17.3 to 17.4 as 17.3 has a serious ssl bug
Add python package mutag
Remove mimms name from description
nixos: Add gitlab and gitlab-shell

I had to make several adjustments to make it work with nixos:

* Replace relative config file lookups with ENV variable.
* Modify gitlab-shell to not clear then environment when running
  pre-receive.
* Modify gitlab-shell to write some environment variables into
  the .authorized_keys file to make sure gitlab-shell reads the
  correct config file.
* Log unicorn output to syslog.
  I tried various ways of adding a syslog package but the bundler would
  not pick them up. Please fix in a better way if possible.
* Gitlab-runner program wrapper.
  This is useful to run e.g. backups etc. with the correct
  environment set up.
nixos/gitlab: fixes

- fix timezone data not found
- fix module, add simple test
- allow to set port
gltron: mark as broken

(cherry picked from commit 23d01bb90c9d6ba74f507fe69439f7e1e0a3f238)
Signed-off-by: Domen Kožar <domen@dev.si>
whitespace change to fix k2pdfopt build

(cherry picked from commit 896036d8e5ec2ad35e74fc43da3d6305ef43b253)
Signed-off-by: Domen Kožar <domen@dev.si>