Rather than trusting that nothing is going to sneak in before the
early_late_divider in the second run (and thus be skipped altogether),
keep a list of the scripts run early, and use that list to skip things
in the second run.

This has the primary benefit of not skipping a local script that gets
ordered too early in the second run. It also gives an opportunity to
clean up/simplify the code a bit.

Use a space-separated list rather than the more traditional colon for
maximum insurance against creativity in local naming conventions.

Reviewed by: brooks