Use an "IP generation mask"

Use a special mask to generate IP addresses. This
is named ipgeneratemask. If none is specified,
it will fall back to using the netmask field.
Serval-specific changes

Default servald status to false and add
support for a special servaldsid field.
Use ipgeneratemask in defaultPlug profile
Merge git://github.com/hawkinswnaf/commotiond into hawkinswnaf-master

Resolved conflict with defaultPlug config file.
Rename default profile to 'example'
Flesh out example profile.
Add flag to turn WPA on and off.
Update default profiles for better SSIDs and new flags.
Fixing merge conflict in profiles
Use most-significant bytes of the MAC for nodeid
Merge pull request #9 from hawkinswnaf/master

Use most-significant bytes of the MAC for nodeid
Add wpa flag to OpenWRT scripts.
Add dynamic firewall support for pluggable interfaces to OpenWRT packaging.
Add print_mac utility function for printing mac addresses.
Fix signed-ness and integer size management for generating nodeid from mac address.
Don't set BSSID for non-adhoc interfaces on OpenWRT.
Merge remote-tracking branch 'oti/master'
Additional nodeid debugging, more signed-ness fixes.
Merge remote-tracking branch 'oti/master'
Ensure that the nodeid is stored in network byte order and represented in host byte order.