adding `$theme->footer();` to templates since no footer file is used. (For plugins that insert js/analytics tracking).
use php date for copyright date instead of hardcoded date
fix paths and file type for favicon and apple touch icon
fix some typos in xml
Add support for a Colophon area and document in README
add note to README regarding setting custom class for list wrapper.
add support for Post Footer and related posts block. Fixes #3