- Do not use a target to specify dependencies.
- Added postgresql and mysqld as optional dependencies.
The service files work if the user has installed mysql or postgres either.
- Removed ExecStop in gitlab-unicorn.service. It is entirely wrong to do
it in such a way, see [1]
- Added daemonize flags as it fixes systemd errors and warnings. Without
this flags I was not able to start/stop a service properly because systemd has
caught the wrong MainPIDs. Furthermore I had problems with service
timouts as systemd caught the wrong return codes and considered the
services as failed.
- Updated README.md.
[1]: http://lists.freedesktop.org/archives/systemd-devel/2014-January/016417.html
