One more fix for patch_reverse() (#1603)

Ensure that we call patch_reverse() very early on in the startup
process by putting the call directly in manage.py and wsgi.py

Updated manage.py to use execute_from_command_line() instead of the
execute_manager().  This is the new prefered way to do things.

I think this should make things work for now.  Ticket #1605 lists some
more improvements we could make.