Rename stylesheets.
Remove tutorial stylesheet.
Refactor and add CSS to header navbar.
Add cream color to background.
Fix bug in pdf creation (instance variable was nil if create! failed).
Fix about page html.
Add Julee font.
Change background color.
Sketch pdf improved show page.
Capitalize relevances.
Switch to master.
Resize info areas.
Implement poly show code. Add helper to generate links.
Implement conditions show code. Tune link generator.
Draw blackboard.
Finish blackboard.
Implement abstract show code.
Almost finish pdf show page.
Improve layout and fix some divs.
Fix layout.