testtools bug update

Hello testtools fans.

If you are wondering what all the recent bug mail was about, wonder no more, for I shall explain. Thus.

We’re using only three different levels of importance for testtools bugs: Critical, Medium and Wishlist. Critical is reserved for release blockers: regressions, test failures and other disasters. Medium is for genuine defects and other things that we think are important. Wishlist is for everything else. I think of them as Critical, Important and Someday.

All of this is in preparation for the 0.9.8 release, which promises to be a doozy.  Stay tuned.