XSB Src (SVN)-old

correct loading of .cpl files

manual for the updated PITA version

Eliminated recursion in xsb_eval (evaluating expressions is/2) by using an explicit stack. Now no bound on expression depth.

Change to doc of not_exists.

Small changes to Section 5.5 (Tabling for Termination)

Added current module to warning about redefining clauses, as the clauses are not redefined everywhere.

Fix a minor with add_to_db. Docs.

Restore Makefile which was inadvertantly changed.

changed xwams due to addition of bldkavars intstruction.

Add compiler optimization to combine consecutive bldavar insts to new bldkavars.