2007/01/16 12:18:19 mmeeks 1.17.24.2: Submitted by: mmeeks
Kill 'memory::Segment' - no longer needed.
Bin some other (empty / redundant) headers.
2007/01/11 10:35:25 mmeeks 1.17.24.1: Submitted by: mmeeks

Large scale re-factoring, remove fine-grained locking in favor of a simple,
single global lock (still in progress).
Identify and fix various hot-spots.
Remove otherwise empty / non-compiled files.
Kill UpdateAccessor