Deactivate "git commit", and add "git rm" reminder.
Remove Python blurb from About page.
Rephrase top page.
Shorten tiny (main page) example code.
Remove "Download" page (use inline "git clone" command blurb.)
Use MPipe in code analysis.
Remove "master" module (already replaced with MPipe.)
Fix for new way of running create-xml.py, and Python 3 upgrade.