Breakage with new ithreads

[scott]

POE-Component-Pool-Thread at one time worked quite flawlessly, and some time around the release of perl 5.8.4ish it started going to hell — or it could be my imagination. But anyway, for the last who knows how long, it hasn't functioned properly. Most of the strange behavior can be found in the test suite.

This bug is for the test post_threshold.pl in which the test output counter mismatch is happening.

And it doubles as me testing the email notification stuff to see if it's fixed