XSB Src (SVN)-old

added a cast to silence a warning

added sha1 hash

Fixed some problems in statistics.

Fixed a problem with error handling for max_memory flag -- a subsidiary flag was not properly reset.

gcc 5 doesn't like inline extern functions. XSB won't link.

A bunch of minor fixes. Some declarations not at beginning of block
moved there for MSVC. Changed completion flag to use bits rather than bytes
in possible preparation for answer_complete flag. Some format fixes.

Fix minor bug in handling of fold aggregate indicator.

Handled predicates used in aggregate declarations more consistently with
other uses. Improves compile warnings.

Imported '.'/2 from consult for aggregations that use lists.
Quiets compiler warnings (when aggregate is in a module) but I
doubt it has any other effect.

Added a couple of sentences about timed call and break levels.