[svn] Fixed possible issue with host name fallback to SERVER_NAME, as specified in the WSGI PEP.
[svn] Fixed possible issue with host name fallback to SERVER_NAME, as specified in the WSGI PEP.

--HG--
branch : trunk

mikepk/pybald-routes,webknjaz/routes,alex/routes,bbangert/routes,mikepk/routes