Log Message:
Update devel/p5-Heap from 0.50 to 0.71

0.60  Sun Nov 16 16:58:12 EST 2003
        - ensured that $elem->heap can be tested for undef
          to determine whether it is actually on a heap at
          the moment
          - requested by Dan Bolser <dmb@mrc-dunn.cam.ac.uk>
        - fixed bug in Heap::Binary delete
          - noted by Arun Bhalla <bhalla@uiuc.edu>
        - changes to t/test.t
          - added tests for delete
          - made test run against all Heap variants
          - made test configurable to get a small test case
            for solving bugs
        - fixed bug in Heap::Binomial delete
        - Heap::Fibonacci delete worked in tests

0.70  Fri Dec  5 00:55:41 EST 2003
        - finally got around to renaming minimum and
          extract_minimum methods to top and extract_top
          - prompted by Steve Lembark <lembark@wrkhors.com>
          - old names are still supported, but depracated

0.71  Thu Jun 17 12:25:36 EDT 2004
        - fixed a memory leak in Heap::Fibonacci
          - the DESTROY method did'nt traverse fully
        - one final reference to extract_minimum in doc for Heap.pm
        - both issues reported by Christian Plessl <plessl@tik.ee.ethz.ch>