testing kramdown converter
maruku-to-kramdown required footnote changes

same .footnotes div, but not the same return link style. The return
link style may work better than the maruku code.
initial styles for figure/caption images

Using the image_tag plugin to generate figures.
fixing invalid CSS
responsive image layouts, figure image fix
testing standard html figure/figcaptions

I tested out various ruby plugins to generate figure/figcaptions for
images (preferred html markup).
now using includes, big structural changes
initial atom.xml draft

Borrowed heavily from Carl Boettig:
https://github.com/cboettig/labnotebook/blob/master/atom.xml

Still needs to be validated and tested.
final structural edits
Merge branch 'structure'