Log Message:
Updating devel/p5-Graph from 0.91 to 0.93

pkgsrc changes:
- Add license definition

Upstream changes:
2010-03-07  Jarkko Hietaniemi  <jhi@iki.fi>
	* Revert the SPTHeapElem.pm change made in Graph 0.92,
	  installing Heap 0.80 broke Graph.  Better be conservative.

2010-03-03  Jarkko Hietaniemi  <jhi@iki.fi>
	* Address rt.cpan.org #55912 "Broken links in the documentation"
	* Address rt.cpan.org #55196 "Heap 0.80 compatibility fix"
	* Add copyright and clearer license statement.
	* Release as 0.92.