now choose whether to let submitters of new bugs choose a priority, or whether
they should just accept the default priority (which is now no longer hardcoded
to "P2", but is instead a param.)  The default value of the params will cause
the same behavior as before.

don't let people file new bugs against this product.  (This is for when a
product is retired, but you want to keep the bug reports around for posterity.)

that have spaces or other weird characters in them.

some changes to the database schema!

product.  This description is presented when the user is entering a
new bug.

BSDI systems.

better with product names that have spaces or other weird stuff in them.

you have exactly one product defined.  Oops!