Prepare niserver.py for WSGI alternative usage.  Fix bug in nrsconfig call of check_form_data.
Prepare niserver.py for WSGI alternative usage.  Fix bug in nrsconfig call of check_form_data.

skunkwerks/netinf,skunkwerks/netinf,skunkwerks/netinf,skunkwerks/netinf,skunkwerks/netinf,skunkwerks/netinf,skunkwerks/netinf,skunkwerks/netinf