XSB Src (SVN)-old

Removing test files that are now in incremental_tests and run from there.

And changing this one also.

Cleaning up the test suite: taling out the "approximate" errors, and fixed test_trievars to properly catch and write out the result.

Due to updates. (Others with better latex installations might want to recompile
these.)

Fix minor typo and minor clarification.

Document add_lib_dir/2/3.

Minor clarification on form of library_directory directory names.

Fix minor typo.

Modified abolish_table_pred to support the deletion of multiple subsidiary
tabled predicates generated by table_index. Done through a recusive loop
(not failure driven loop) to avoid a bug in abolish_table_pred
(when abolishing cascades.) This might be reconsidered when that bug is
tracked down.

Fixed implementation of table_index directive.