KAZOO-2539: add sysconf docs
KAZOO-2539: formatting updates
KAZOO-2539: use a scatter/gather approach to resolving hostnames to IPs,
so no one DNS lookup blocks ACL generation
KAZOO-2539: more formatting updates
KAZOO-2539: refactor to use common function in fold
KAZOO-2539: add dns resolver options to limit time spent
KAZOO-2539: formatting update
Merge pull request #384 from 2600hz/KAZOO-2539

Kazoo 2539