mongodb: relax backup directory permissions
syslog: fix systemd integration
lib_users: add false positives
zookeeper: add more nagios checks
nginx: do not use syslog anymore
update c500k role
nginx: add metrics support
zookeeper: add helper to retrieve zookeeper nodes
modify zookeeper recipe to be solo compatible
fix zookeeper osx errors
syslog: add systemd unit
update production env
Merge branch 'next'