No code changes, just reformatting according to Erlang Emacs mode before making actual changes
Matching commit to the Update lager commit in Zotonic: specify log directories in webzmachine instead of Zotonic since they are webmachine-specific and Zotonic uses lager anyway + allow separate log dirs for performance logging + start webmachine_logger in addition to a custom logger (it won't hurt and the custom logger can use the default logger anyway, see z_stats)
Merge remote-tracking branch 'yoonka/update-lager'

Fixes #11
Change start behaviour of webzmachine logger.

Do not start the default logger when we have a custom logger present.