Tue Jan  7 04:09:16 MST 2014

setup:
 cluster(): Added to handle speed & performance issues with
            executing large network CIDR scans.
 end(): Added to cleanup all setup.cluster() child processes
        once they have completed.

tools:
 command(): Added to handle creation of nmap command string.

With the addition of the cluster module for scans to run in
parrallel the following performance increases were observed:

W/O: Nmap done: 256 IP addresses (3 hosts up) scanned in 18.77 seconds
W/: Nmap done: 256 IP addresses (3 hosts up) scanned in 7.14 seconds