All examples should be tied into unit tests and should also be ready-to-use.

[ShapeOfMatter]

As tests of our system, most of the examples will be redundant. That said, an example that doesn't work is useless, so a test of the example is worthwhile. Readers are less likely to experiment with running the examples over HTTP, but it should be easy for them to do that if they want to.

[ShapeOfMatter]

It's tempting to just delete all the stuff that we haven't bothered writing a test for, but i'm leaving it for now.
flagged and cleaned a little in be110aa.