Import of RSAVAGE/GraphViz2-2.34 from CPAN.

gitpan-cpan-distribution: GraphViz2
gitpan-cpan-version:      2.34
gitpan-cpan-path:         RSAVAGE/GraphViz2-2.34.tgz
gitpan-cpan-author:       RSAVAGE
gitpan-cpan-maturity:     released