Code review comment for lp:~michael.nelson/launchpad/487009-db-generalise-ibuilder-1b

> == Tests ==
>
> bin/test -vv -t doc/builder.txt -t doc/buildqueue.txt -t
> TestCurrentBuildBehavior.txt

Also include doc/buildd-dispatching.txt which demonstrates that build dispatching still passes with the refactoring.