* Create scaffold_test.sh which holds actual tests (still calls
scaffold.sh)
* Move rm/unregister of foobar to setup/teardown functions
* run.sh now prints deprecation warning and calls ../scripts/runtests
Output is more useful (IMO). Everything is silenced for the duration of
the tests but a count of tests/failures and any errors are output at the
end. Pass --verbose to watch stdout during the tests.
Logic is also seperated into core setup/runners and individual test
definitions. Should be more easily extensible.