[Zope] Make pcgi-wrapper Required

[Albert Kinderman]

I just installed the beta 4 binary for linux.  Although there was a
pcgi-wrapper in the pcgi directory, the connection through apache and
Zope.cgi failed.  Once I did a configure, make, and make install (which
fails) in the pcgi directory, everything was ok.  

I had a similar problem with beta 3, except the pcgi-wrapper wasn't in
the the pcgi directory, so it was a little more obvious that I had to
make it. 8=)

Al