Genesis 30.

I forgot to commit this.  Oops.
Restylize blockquotes.

In the original version of this template, blockquotes were obviously thought of
as something composed of only a few words, perhaps a sentence.  My quotes tend
to be more... blocky, however, and I don't particularly want a bunch of 48px
text filling up the page.

Since I made the text smaller, I decided it needed something else to mark it
off.  So, we've got raquo and some light blue background color, themed off the
link color.
Gitignore the post template.

It's nice being able to just `git add .`