Update config for v1.0.0 or Jekyll.
Make image of me larger for those on retina screens.
Remove youtube liquid parameter with underscore in a post.

In response to Jekyll bug #1033:
https://github.com/mojombo/jekyll/issues/1033
Fix post/page URL's everywhere.

Post/page url's now include a leading forward slash, so site.baseurl
isn't needed as often (mostly b/c we don't have a baseurl).
Remove maruku LaTeX configuration.

It was never used. Doi.
Update rakefile to new Jekyll commands and terms.
Exclude is an array, so it needs spaces. Add those spaces.
Update .gitignore and _config.yml excludes for new files/folders.
Fix indentation everywhere!
Reformat drafts for new draft format.

Even though I don't use them.
Add preview mode for drafts.
Remove "fork of Jekyll" and Markdown/editor talk on the about page.
Add link for ADN verification.
Remove old social icons.
Use font awesome instead.
Add icon for app.net
Change wording a bit.