stackbuilder - wizard: Don't try to use a download counter unless the

Log Message:
-----------
Don't try to use a download counter unless the user has specified one on the
command line. This is because we just rolled out the new postgresql.org web
and ftp infrastructures, which handle their own logging.

Modified Files:
--------------
wizard:
App.cpp (r1.41 -> r1.42)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/stackbuilder/wizard/App.cpp?r1=1.41&r2=1.42)
StackBuilder.cpp (r1.17 -> r1.18)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/stackbuilder/wizard/StackBuilder.cpp?r1=1.17&r2=1.18)
wizard/include:
Config.h (r1.8 -> r1.9)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/stackbuilder/wizard/include/Config.h?r1=1.8&r2=1.9)