- The table tracking notice suppressions is now done with a table
attribute instead of "manually" with scheduled events.
- The $suppress_for field can be set within PolicyItem's now too to
affect the suppression interval through the notice policy.
- The test needed to append the second notice the event queue so that
the notice would be suppressed correctly.
- Setting $suppress_for manually in apply_policy since it doesn't pick
up the &default when directly creating the record inside the NOTICE call.
