Update fltk-config to support all C++ file extensions.
Make background of FLTK logo transparent.
Disable overlays if the scheme is set.
Fix table cell formatting in Fl_Help_View. Still need to resolve an
issue with column widths vs. table widths.
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.1@1965 ea41ed52-d2ee-0310-a9c1-e6b18d33e121