Revert 7d0b0cf..a7e0a06

This rolls back to commit 7d0b0cf193e1384307213e9e432d9f914fa8b6df.
rake preview is working.
Merge branch 'master' of https://github.com/scottsievert/scottsievert.github.io

Conflicts:
	src/sass/base/_theme.scss
	src/sass/custom/_colors.scss
	src/sass/custom/_fonts.scss
	src/sass/custom/_styles.scss
	src/source/_includes/custom/after_footer.html
	src/source/_includes/custom/head.html
	src/source/_includes/custom/navigation.html
	src/source/_includes/navigation.html
	src/source/_layouts/default.html
	src/source/_layouts/page.html
	src/source/_layouts/post.html
	src/source/index.html
	src/source/stylesheets/screen.css