No need for this here, especially because this file is in the walkthrough
and will be found by web crawlers.

Reported-by: Julius Bachnick

Now, the majority the install can be done with one line, but the other
to each part of the install is still available.

Also fix a few bugs and add Wireshark coloring rules.

Still could be better though.... and we need more topology
examples.

Defining custom topologies, switch types, controllers, and hosts is now
much easier.  Plus, all Ripcord-specific stuff has been moved out.