=head1 USE
The bigtop config block keyword C<engine> specifies the Gantry engine
which will serve the app. But, note that stand alone server scripts
and CGI scripts ignore the value of this statement, since they must
use CGI.
=head1 EXAMPLE
Build the example with:
bigtop -c example.bigtop all
Change to the Kids directory and look for C<MP20> in docs/httpd.conf.