Created a preliminary rough Bootstrap 3 layout using the online
Layoutit! builder (http://www.layoutit.com/build), downloaded it,
and put it in the new src subdirectory.
Ignore file generated for commit messages and sometimes left around by my Emacs & git workflow.
Woops, Pandoc files should not have simply a .txt extension.  Better use the Markdown .md extension.
Renamed to make it more clear what this file is, so that I don't confuse myself or other people in the future.
Added an explanation.
More info.
Moved .md files to subdirectory contents/.
Renamed README.LOCAL.README.txt to README.txt, since there was no other readme file here anyway -- so less chance of confusion.
Moved css files from src/css to src/handbook-css.
Created templates for the different pages of the handbook.
More material.
Started a readme.  Not very far along.
Massively revamped how output is generated.  Now generates multi-page TOC, and the menu navigation menu, and more.