Pandoc approach

Here's what I was talking about.

To generate the handout with notes, you would now just do this at command line:

```
pandoc --template=/path/to/pandoctemplate.tex -V notes=true pandocinput.md -o pandocoutput.pdf
```

And without notes, this:

```
pandoc --template=/path/to/pandoctemplate.tex pandocinput.md -o pandocoutput.pdf
```