Fix development logging in devconf dev mode

[pablothedude]

Currently a default syslog config is used in dev mode and that results in no logging at all.

[pablothedude]

We had a discussion about the configuration in EB and the question is whether syslog logging should be supported since we seem to only use Docker in dev and prod mode. It seems that we can drop the syslog logging so the only configurable parameters would be the log levels. In the end that should be easier to maintain and test and the logging setup would be more clear.

Since we are using the dev setup configuration as the initial settings, the logging should work out of the box and we don't need to copy different configurations, just a different parameters.yml should be enough.

We might decide to add some logging documentation with a basic syslog logging setup for other users?

#1792

@baszoetekouw what are your thoughts on this?

[baszoetekouw]

Yes, I think we can get rid of all the syslog config; this is not needed in the containers.

I think the logging config is very much dependent on the exact infrastructure you are using OpenConext is, so I don't think anything more generic makes send for everyone. It would be nice to at least document how to set up their own custom (syslog/database/etc) logging.