XSB Src (SVN)-old

Fixed bug in loading rule: execute(X) :- X.
(needed to handle variable before calling goal_cut_trans.)

Fixed assert to correctly transform clause like
execute(X) :- X.
and add the call wrapper correctly.

Preliminary version of abstraction for dynamic incremental predicates.

allow xsb_configuration.xwam without the corresponding .P file

Exporting filter_varlist/4.

Added coercion to quiet MSVC compiler.

Fixed problem in using get_residual_sccs for uncondtional answers.

Commented out ensure_loaded(xsbbrat) -- the tests should also test that xsbbrat is loaded, come what may.

Fixes to ensure that various undefineds are always loaded, and
regularized how they are loaded. This fixes a problem encountered by
Flora, and some refactoring makes it easier to add new types of
undefineds.

in gpp, make it work with forward slashes in the file paths under windows.