Rev 1.11 GvR
Fix for SF bug #448835.

Fix this to work with the new (still undocumented) tabnanny API.

I'm afraid Stephen will have to add this fix to the IDLE fork code
base as well.

Rev 1.12 rhettinger
(skip, done differently in Idlefork)

Rev 1.13 time_one
(skip, NA)