This fix changes the CodeEditor to do a single 'insert'. It would be better to change Fl_Text_Display to increment the redraw range if more characters are inserted before the actual draw is called. Since this goes too close to core code for my taste, I leave that as an exercise for 2.0.
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.1@4446 ea41ed52-d2ee-0310-a9c1-e6b18d33e121