(EmacsFrameSetCharSize): Take widget's border width

(EmacsFrameSetCharSize): Take widget's border width
into account.
(set_frame_size): Use FRAME_SCROLL_BAR_COLS
to determine vertical_scroll_bar_extra.
(EmacsFrameSetCharSize): Ditto.
(EmacsFrameDestroy): Remove call to free_frame_faces;
it's also called from x_destroy_window.  Since this function is
called from X, freeing stuff allocated with xmalloc is dangerous
here, anyway.
(widget_store_internal_border): Return void.
(create_frame_gcs): Don't allocate relief GCs.
(setup_frame_gcs): Don't change relief GCs.
(setup_frame_gcs): Initialize relief GC's to line
width 1; remove references to relief_gc_line_width.
(create_frame_gcs): Create GC's for relief drawing.
(setup_frame_gcs): Initialize them.
(EmacsFrameDestroy): Free them.
(set_frame_size): Double trunc_area_extra.
(EmacsFrameSetCharSize): Ditto.
(set_frame_size): Set it.
(EmacsFrameSetCharSize): Ditto.