ports/128057: Update biology/avida to 2.8.1

[amdmi3 at FreeBSD.org]

Synopsis: Update biology/avida to 2.8.1

Responsible-Changed-From-To: freebsd-ports-bugs->amdmi3
Responsible-Changed-By: amdmi3
Responsible-Changed-When: Mon Oct 13 12:51:01 UTC 2008
Responsible-Changed-Why: 
I'll take it.

http://www.freebsd.org/cgi/query-pr.cgi?pr=128057