Merge pull request #45 from opentechinstitute/no-20-alias

Removed 192.168.1.20 plug alias. Looks good, alternate alias already tested and integrated, this is just cleanup.
Revert hasty config change, needs more testing.
Added hotplug script to set plug interface to use thisnode alias
removed ap thisnode script
added avahi-daemon, removed wpad-mini, from config
Merge pull request #57 from opentechinstitute/config-fix

added avahi-daemon, removed wpad-mini, from config

Tested by areynold and danstaples
Merge pull request #56 from opentechinstitute/thisnodefix

Assign 'thisnode' alias to plug interface

Tested by areynold
Removed 192.168.1.20 plug alias in favor of thisnode