This is ugly but it works

I patched remark.js to use highlight.js 0.8.3, which has my commits
that improve Scala support. However, there is some kind of strange
interaction between marked.js (used for Markdown parsing) and
remark.js where blocks like this:

```scala
val x = 9
```

...end up being tagged with "undefinedscala" instead.

I hacked around this, and included the packed and minified remark.js.

God have mercy on my soul.