ports/166533: update math/fann from 2.1.0b to 2.2.0

[edwin at FreeBSD.org]

Synopsis: update math/fann from 2.1.0b to 2.2.0

Class-Changed-From-To: maintainer-update->change-request
Class-Changed-By: edwin
Class-Changed-When: Sat Mar 31 03:30:27 UTC 2012
Class-Changed-Why: 
Fix category (submitter is not maintainer) (via the GNATS Auto Assign
Tool)

http://www.freebsd.org/cgi/query-pr.cgi?pr=166533