Don't allow way to override wsgi.multiprocess for embedded mode.

[GoogleCodeExporter]

If load balancing across multiple Apache servers and using mod_wsgi embedded 
mode and only one Apache child server process, wsgi,multiprocess will be False 
for each instance. There should be a way of overriding this so can say it 
should be True. One can do this for daemon mode but not embedded mode.

Original issue reported on code.google.com by [email protected] on 15 Jun 2010 at 12:41