Log Message:
Update p5-Class-MOP from version 0.97 to version 0.98.

Upstream changes:
0.98 Mon, Jan 18, 2010

[ENHANCEMENTS]

* Added Class::MOP::Class->rebless_instance_back, which does the inverse of
  rebless_instance (doy, rafl).

0.97_01 Mon, Jan 4, 2010

[ENHANCEMENTS]

* Internal refactorings to move shared behavior into new "mixin" \ 
classes. This
  made adding some new features to Moose much easier. (Dave Rolsky)