Delete Makefile, add _config.yml
Remove bower.json
Remove XSLT stylesheets
Remove .html files from .gitignore
Add head.html include
Add footer and MathJax config include
Move About page to Markdown
Remove old .gitignore stuff
Add page layout
Add essay layout and move MathJax stuff from footer to it
Port index to Markdown
Add references include
Fix about.md and update index.md
Fix references include
Start porting relativistic propulsion article to Markdown
More Markdown changes, add front matter and a reference
More Markdown changes, add references, move links section
Mostly paragraph changes
Move to Markdown file, out of its own folder
Fix the references and the remaining XML stuff