Allow to set loglevel to something like warning

[szaimen]

Hi, after reading the server.conf.in, I got the impression that it is not possible to set the loglevel.

In order to keep the logs clean from info logs I would like to ask if it would be possible to add a config value to set the loglevel to something like warning so that only warning or more crucial errors get shown.

Thanks a lot in advance! :)

[fancycode]

The default Go logging subsystem doesn't support log levels.

Work has started to migrate to a different logger in #224 but this is currently on hold due to the lack of resources.

[szaimen]

I see. Thanks for the response! Lets hope the PR can be pushed forward at some point :)