#119: more test-battery compatibility.

Test battery tests that don't pass:
tests/purge/00-purge.t
tests/reload/06-inheritance.t
tests/reload/12-runahead.t
tests/restart/03-retrying.t
tests/restart/07-waiting.t
tests/runahead/01-check-default.t
tests/runahead/02-no-final-cycle.t
tests/shutdown/00-cycle.t
tests/shutdown/01-task.t
tests/special/01-one-off.t
tests/special/02-exclude.t
tests/special/04-clock-triggered.t
tests/suite-state/00-polling.t
tests/suite-state/01-polling.t
tests/tutorial/cycling/00-tut.five.t
tests/vacation/
#119: fix lots more vs tests