Cleaning up usage screen.

Shorten the final array push using include? for unless statement in
stead if a long string of ||'s. Define a report method.
Branch commit before merge.
Adding SNMPv3 functionality.
Cleaning up user interface.
Moving the reporting to a def. Sorting the mapped port array by port
number before writing it out to a disk file.
More cleanup on the reporting method. Adding a path to the filename.