Added DHCP template parsing to ctrladdr.
Added DHCP template parsing to ctrladdr.

Walk through /usr/local/etc/dhcpd.conf.template, and try to detect
"fixed-address" and "range" directives.

nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome