changed smart mode indication. the only mouse mode where smart mode can be lit is object. if mode is object, smart button is a toggle that can be on or off. if mode is not object, smart button is not lit. if mode is not object and smart button pressed, mode changes to object. smart is a property of mode object (and only for object).
toolbar: changed order of controls. removed mouse_draw and internal_edit buttons. made mouse mode buttons wider.
removed key bindings for removed mouse mode buttons
add screenshot