footnotes work with maruku, forgot to specify ol margins in style
semantic tweaking for footer
test page for footers and references for review
style for hr
added category writing for all posts

Will be used later when we implement category-based indexes for writing
and photos.
Merge branch 'semantics'
new style for footnote returns

And adjusted footer (next/prev navigation) padding.
removing test post
formatting fix for communicating evolution post
Merge branch 'footnotes'