if the widget is not editable, don't silently eat up GDK_Return, GDK_Home

if the widget is not editable, don't silently eat up GDK_Return, GDK_Home

Wed Feb 24 19:35:15 1999  Tim Janik  <timj@gtk.org>

        * gtk/gtktext.c (gtk_text_key_press): if the widget is not editable,
        don't silently eat up GDK_Return, GDK_Home and GDK_End, return FALSE
        instead so the user can still hook up key bindings.