We can now use gists without their CSS.

Isn't that wonderful?

```
{% gist_no_css jbrains/4111662 TestingIoFailure.java %}
```

or just

```
{% gist_no_css 4111662 %}
```

There's a lot here. I had to expose some parts of the code block tag to understand how it worked, and in the process, I fixed what looked like a mistake in the parameter parsing.

I squashed 128 commits to get here. If you want the play-by-play, then see https://github.com/jbrains/octopress/tree/gist-no-css-tag starting at https://github.com/jbrains/octopress/commit/838282f4a0aa08083166e5d4ddcc01caaa5abcb3 and good luck with that.

I added 67 automated checks. One of them goes end to end, so it's slow. I found a mistake in Liquid 2.3.0 that is fixed in Liquid 2.6, but it doesn't affect the behavior of this new tag.

OK. Hack me to death.