Revision history for Perl extension PNI.

0.03  20100531
    - added PNI::NODECOLLECTION so you can find nodes at runtime.
    - new PNI::Slot class
    - backported from perl 5.10 to 5.8.8

0.02  20100512
    - fixed problem about loading nodes.
    - added Perlop::Eq node.

0.01  20100507
    - first minimal release: just works as cpan module :)