From edfn to µEDF

Startup and gui code removed.
Added a cookie for persistance of outcome filters.
Two business logic procs slightly modified.
Two rendering procs reimplemented and moved to app/edf.adp.
Three rendering procs replaced with tpl/edf templates.
Thirteen wapp-page-* procs replaced with seven pages/edf/*.adp files
The application also was slightly simplified.
Sloccount reduced by 60%, 2012 ⇒1277 lines, effort about 4 hours.

See doc/porting.txt for a list of changes.