Changes from COOK-1167:
- More versatile server discovery - use the IP as an attribute, or use search (see README)
- Removed cron dependency.
- Removed log archival; logrotate is recommended.
- Add an attribute to select the per-host directory in the log dir
- Works with Chef Solo now.
- Set debian/ubuntu default user and group. Drop privileges to
syslog.adm.
- [COOK-836] - use an attribute to specify the role to search for instead of relying on the rsyslog['server'] attribute.
- Clean up attribute usage to use strings instead of symbols.
- Update this README.
- Better handling for chef-solo.