Reduces the indirection in fcgi.c, starts to make the struct template opaque, simplifies the template usage. All with a net negative :-) reads fine to stsp@ (thanks!)

This greatly reduces the number of tp_puts() calls: gotwebd' pages.tmpl goes from 444 to 190. Otherwise, this doesn't produce other observable changes.

add a regress for this case.

This updates -portable's gotwebd instance to make use of the new templating engine.

ok tracey@