Fixes #4321 - Add bundle to restart services at some conditions
Refs #4321 - Change service_restart to wrap service_restart_if and add tests
Refs #4321 - Add a more precise description
Fixes #4409 - Add ncf possibility to rudderify from alternative path
Add theme pelican-bootstrap3

https://github.com/getpelican/pelican-themes/tree/master/pelican-bootstrap3
Order generic_methods by name
Do not track content of site
Order by categories
Remove unused fabfile.py
Unify Makefile target names (no caps)
Add menu with categories
Add generic methods in menu
Tweak site structure, appearance and pelican config
Add option to show/hide Archives link in Menu
Change default style for Pygments code highlighting
Adapt ncf generic_method parser to also read description and parameter details
Adapt Makefile and gitignore for new structure
Various changes and cleanups to the reference documentation generation
Hide sidebar on website
Remove deprecated info about 3 sub-dirs from README