add arp scan to discovery process
add more options to discovery.ini
fix whitespace
do arp sniff on Snoop initialize
fix trailing whitespace
fix api typo in XmlProcessProtocol to correctly report errors
edit supervisord conf file on service discovery
do arp scan if dhcp doesnt reveal IP
start smap driver with custom port, update supervisord
add default supervisord.conf
use ubuntu defaults in discovery.ini
use more universal technique for getting local ip address