Code review comment for lp:~mariosplivalo/charms/trusty/percona-cluster/enable-binlogs

Based on discussion with Ed, this will be changed in a manner so that a new function is introduced, 'configure_binlogs'. That one will be called from install hook, after mysql has been installed, and will restart mysql for the change to take place.
It will also be called from config_changed hook, but it won't restart mysql - it will log a WARNING inside logs to tell administrator/operator to manually restart mysql when appropriate.