Recommend updating and moving current colophone content

[pearcej]

The current colophon is in the backmatter area. The content needs updating for this version of the text, and I recommend it be moved into a preface entitled "History of this Book" rather than "Colophone".

For reference, the current content of the colophone is:
"I started writing this article in 2006 using Python’s restructured text. In 2007 I switched to markdown since everything else I was writing used markdown. In particular I switched to the variant of markdown used by the excellent pandoc 3  program. Pandoc does an excellent job of converting markdown to html, latex, pdf, and other formats. The markdown source for this article is available here 4 . Finally the document became so big that I used pandoc to convert it to latex for preparing the final version. I used The htlatex program to generate html for the online version of this document."

@bnmnetp What are your thoughts about moving and updating this?

[bnmnetp]

fine with me