[Icecast] solution for YP problem

[mark burdett]

I wanted to let folks know that I had a problem with
unreliable, and mostly dysfunctional listing of a server's
mounts on YP directories.  This server has a few dozen mounts. 
If all the relays and sources were connected, YP wouldn't
work; if only some were connected, YP would start working.  I
had to increase the <yp-url-timeout> for all the <yp-url>'s to
a much larger number, currently at 120 although possibly a
lower number would work.

--mark