XSB Src (SVN)-old

Delete unused variable.

Add extending hashtables for interned records to significantly improve scaling.

more flag setting for profiler time in memory management.

Expanded (slightly) profiler's recognition of time in gc (or memory management) to include stack shifting.

Fix a strange bug (strange to me, and maybe only in MSVC) in accessing sched_heap in complstack resizing.

A tiny bit of refactoring and comment.

Cleaned up and updated some documentation, particularly w. dynamic loading.

Changed the names of variables from Dir to AZ, as Dir is ambiguous between Direction and Directory.

Fixed clang compiler error with filenanoseconds.

Fixed memory error when trying to access compl frame to reset level_num when there is no frame.