* Rework bit-vector tracking mechanism to use a 256-way tree. This avoids
making assumptions about 64-bit platforms' memory layouts, and eliminates
the fatal error introduced in 0.72 when the assumption was violated.
+ * Convert to XSLoader
* Resolve CPAN #49437 (Devel::Size adds magic in Perl 5.10)
+ * Resolve CPAN #58484 and #58485 (related to CVs that are XSUBs)
0.72 2008-10-14 BrowserUk 70 tests
* Added bit-vector pointer tracking mechanism.