(fetch the filename as a string so I can see it with dbx, and set f_lineno);
call abort() when detecting an "undetected" error.

(no bit vector)

Also use locks and Queues for communication with other threads.

Added runcall(func, *args) interfaces to profile.py, bdb.py, pdb.py, wdb.py
Added new module bisect.py and used it in sched.py.
Mostly cosmetic changes to profile.py (changed output format).

update thread package.

receives a REDRAW event

added an output() function to move the I/O out of the algorithm

Viewer.py in turn requires changes to VFile.py (unfortunately that file
is now a complete mess...).

Added optional read-ahead thread.
Changed mouse interface.

Cleverer skipping of frames.

saves the cache.
Added getinfo() to VoutFile.
Fixed writing of 'grey' file header.
Added quiet parameter.
Adapted to new syntax.

  argument to malloc() (size_t or unsigned int)

* listobject.c: check for overflow of the size of the object,
  so things like range(0x7fffffff) will raise MemoryError instead
  of calling malloc() with -4 (and then crashing -- malloc's fault)