ports/172051: science/gwyddion: Update to version 2.30

[edwin at FreeBSD.org]

Synopsis: science/gwyddion: Update to version 2.30

Responsible-Changed-From-To: freebsd-ports-bugs->miwi
Responsible-Changed-By: edwin
Responsible-Changed-When: Tue Sep 25 18:35:13 UTC 2012
Responsible-Changed-Why: 
miwi@ wants his PRs (via the GNATS Auto Assign Tool)

http://www.freebsd.org/cgi/query-pr.cgi?pr=172051