Start lamson mail logger with supervisord (fixes #233)
Start lamson mail logger with supervisord (fixes #233)

This uses a custom method of starting lamson in logging mode, which does
not daemonize lamson [0].

Mailserver logs end up in `parts/mailserver/logs/logger.log` instead of
`var/log/lamson.log`. This could be changed by calling the stuff from
`lamson.utils.make_settings` manually, but I think it's not worth it.

[0] https://gist.github.com/nidico/5076333

phihag/adhocracy,SysTheron/adhocracy,phihag/adhocracy,SysTheron/adhocracy,DanielNeugebauer/adhocracy,alkadis/vcv,alkadis/vcv,liqd/adhocracy,DanielNeugebauer/adhocracy,SysTheron/adhocracy,DanielNeugebauer/adhocracy,DanielNeugebauer/adhocracy,alkadis/vcv,alkadis/vcv,alkadis/vcv,DanielNeugebauer/adhocracy,phihag/adhocracy,liqd/adhocracy,phihag/adhocracy,phihag/adhocracy,liqd/adhocracy,liqd/adhocracy