Redefining a class that causes circularity: not just for SBCL.
Also for CCL, ECL, LispWorks, SCL (and probably CMUCL if we didn't punt).
On the other hand, since we now punt on upgrading from ASDF1,
we can safely remove the old uninterned symbol list.
Add documentation to uiop:argv0.
Tweak the web page.
Update debian information.
Bump version to 3.1.0.85