fix FLTK position/outerposition properties, respect units * __init_fltk__.cc: Handle figure properties position, outerposition, menubar with respect to units property. Rename __fltk_redraw__ to __fltk_check__ because it doesn't trigger a redraw but calls Fl::check () instead. Move the creation of plot_window to redraw_figure. * __fltk_ginput__.m: Reflect rename from __fltk_redraw__ to __fltk_check__ * __fltk_print__.m: Remove redundant __fltk_redraw__