ports/180274: [MAINTAINER] graphics/mapnik: update to 2.2.0

[wg at FreeBSD.org]

Synopsis: [MAINTAINER] graphics/mapnik: update to 2.2.0

Responsible-Changed-From-To: freebsd-ports-bugs->wg
Responsible-Changed-By: wg
Responsible-Changed-When: Fri Jul 5 11:36:21 UTC 2013
Responsible-Changed-Why: 
I'll take it.

http://www.freebsd.org/cgi/query-pr.cgi?pr=180274