WIP: prepare_config method
Merge pull request #79 from balabit/3.6/f/add-prepare-config-method-to-logpipe

3.6/f/add prepare config method to logpipe
Merge branch 'master' of https://github.com/lbudai/syslog-ng
Merge branch 'master' of https://github.com/lbudai/syslog-ng