Add basic print stylesheet

- Hide navigation
- Adjust header text size
Update ruby version
Fix typo
Improve semantics of wrapper elements
Remove line numbers when printed
Italicize author attribution
Improve code highlighting

Add explicit backround color controlled globally by variable
Hide gist meta bar
Remove app cache reload confirmation
Update jQuery CDN
Add network fallback for offline cache
Remove trailing whitespace
Allow network requests to google fonts
Allow arbitrary network requests
Convert existing code highlighting to local
First pass at de-bootstrapping landing page
Add contact header
Add page header on index page
Remove duplication in bio
Update resume