Straighten out a nameing conflict.
Added -f flag to rm, to quiet.
minor cleanup of 't not'.
Test one more minor thing.
Simple cleanup: Eliminate tabling of nonexistent predicate.
Eliminate tabling on non-existent predicate.
Add numbervars to make test more stable.
Cleaned up some very obscure code on passing file names to load_object_file.
Added a def for use with incrementa, abstract
Now supporting incremental, abstract(0)
