
"Coverage.txt" records the number of methods in each version of
Ruby-FLTK, compared to the number of functions and methods implemented
by FLTK .  It provides a *rough* guide to Ruby-FLTK's progress.

We detect FLTK functions by parsing the HTML documentation.  This
means that we don't count undocumented functions.  We decide whether
Ruby-FLTK implements a function by guessing the name of the Ruby
method and passing it to FLTK.respond_to? .
