added custom CSS, require plugins code and trying relative urls for some assets
customize head cleanup
correct headers, banners, page templates, classes, urls, alt text
add HTML sitemap and useful 404 page
compile css in compact for before uploading to site
added notes and attribution to authors
improved the 404 error page to have site search and a sitemap
improved functionality of HTML sitemap
non-recalled styling refinements to SASS
non-recalled styling refinements compiled to CSS