ports/182331: Update audio/pianobar from 2013.05.19 to 2013.09.15

[amdmi3 at FreeBSD.org]

Synopsis: Update audio/pianobar from 2013.05.19 to 2013.09.15

Responsible-Changed-From-To: freebsd-ports-bugs->amdmi3
Responsible-Changed-By: amdmi3
Responsible-Changed-When: Wed Sep 25 01:39:08 UTC 2013
Responsible-Changed-Why: 
I'll take it.

http://www.freebsd.org/cgi/query-pr.cgi?pr=182331