Revision history for Perl extension optimize

0.03_01 2011-02-19 rurban
    - enabled register/unregister
    - stablized 11-integer left shift test

0.03 Sun Aug 11 23:45:10 CEST 2002 abergman
    - Fixed bug when a constant was a AV in which we would get bizare
      copy of Array


0.02 Fri Jun 28 00:22:01 CEST 2002
    - Added register() and unregister() functions to 
      allow third party modules to hook into
      optimize