fixed octave matlab directory name
added Colophon

A Colophon has been added that describes how this
document was designed.  The References section has
also moved to the end of the document.
complete document, general cleanup

The document has been completed for the time being.
It would have been preferrable to have more designs
completed but various problems prevented this.
Specifically the Control Law design with a sum block
has not been solved.
Merge branch 'master' into matlab