Log Message:
Update from version 0.71 to 0.80.

Pkgsrc change: add HOMEPAGE pointing into search.cpan.org.

Upstream changes:

0.80  Sat Apr 28 12:25:51 EDT 2007
	- accepted (finally) all of the changes submitted by Tels++
	- Heap::Elem gets proper new() method too, others all inherit it
	- made cmp, val and heap methods use @_ for speed (as suggested
	  by Tels++)

0.72  Fri Jul  8 09:05:04 CET 2005 (Tels)
	- moved file to lib/ and t/ to remove clutter and simplify build
	- rewrite most test files to use Test::More
	- change test files to load this version, not currently installed one
	- added tests for the various other .pm files
	- removed unnec. require Autoloader and comments about autoloading
	- remove "perl extension" from ABSTRACTs
	- Heap::Elem gets proper heap() and val() routines, the
	  other subclasses (Heap::Elem::Num etc) now simple inherit them