build/lib: Silence rsync output
build/www: Add TEMPLATE files to HTML file list

This allows content hashing for the JS and CSS rules.

Issue #71.
template.php: Make $template_args argument optional

Issue #71.
test.php: Start incorporating site contents

Issue #71.
Rename {footer,header}.html to {footer,header}-nav.html

Issue #71.
Move HTML into header and footer

Issue #71.
html/header.html: Use a {{ title }} variable

Issue #71.
html: Abstract layout

Issue #71.
html: Replace search with results content

Issue #71.
Replace results.php with test.php

Issue #71.