Add tutorials for working with the node terminus

This patch adds some tutorials, presented as scripts, a
puppet file and a vagrant file, that demonstrate usage
of the scenario_node_terminus on a single node.
Add markdown generation

This adds a short python script and a blurb
so that the tutorials can be converted to a
markdown file which is a bit easier to read
on github.
Move comments to single line

Let line wrapping do it's thing, since we're
generating markdown and not writing things
for the terminal.
Merge pull request #31 from michaeltchapman/tuts

Add tutorials for working with the node terminus