sysutils/auto-admin: Upgrade to 0.6.8
auto-mark-package-critical:
New script to add packages checked for availability by auto-update-system
auto-update-system:
Make sure installed packages designated as critical are available before running pkg upgrade. Rebuild pkg from source if package behind ports
auto-wifi-failover:
Better interface detection, automatically clean up rc.conf
Other minor fixes and enhancements