XSB Src (SVN)-old

New version of proc_files. Significantly refactored to make code
more orthogonal and more provide consistency among functionalities.
Added error option to throw errors instead of give warnings.

Changed string hash function. Made simpler, and perhaps better distribution.
Speeds up some programs with *lots of* strings significantly.

Fixed problem with next_prime(). Someone wrote the bound condition
incorrectly, so the hash table never was expanded beyond 4 million or
so, although it was repeatedly cheked.

Added new test to cover a bug in get_call with dynamic incremental facts.

I always forget one.

Rearchitecting the way that incremental dynamic facts are stitched into the IDG. This helps pave the way for better
diagnosis and debugging of incr tabled programs, since if you cant see the IDG you're limited.

Along the way I came across a bug in get_call which make it inconsistent with get_calls and also made a core dump theortically possible.

Ditto -- forgot this changed.

Adding a partial version of get_idg_info.

Adding a partial version of get_idg_info.

forgot to commit this one.