(continuation of previous checkin)

(continuation of previous checkin)
(Fwin32_rgb): Dead procedure removed.
(Fwin32_define_rgb_color, Fwin32_load_color_file, win32_map_color,
win32_regenerate_palette, win32_unmap_color): New functions.
(syms_of_w32fns): Set up new lisp functions.
(define_color): Use palettes.  Simulate use of PALETTE_RGB to
use closest color instead of dithering.
(map_mode): Function removed.
(WIN32_COLOR, SET_WIN32_COLOR): New macros.

	(win32_init_class): Don't set CS_OWNDC in the WNDCLASS style.
(win32_createwindow): Invoke ShowWindow to discard defaults
from parent.
(win32_wnd_proc): Use separate critical sections appropriately.
Handle palette change, show window, and set window position messages.
Record WINDOWPLACEMENT structure length.
D
Detect quit_char.
(Fx_create_frame): Set scrollbar width to be the system standard.

(Ffocus_frame, Funfocus_frame): Functions now do nothing.

(x_to_win32_weight, win32_to_x_weight): Handle "heavy", "extrabold",
"light", "extralight", and "thin" fonts.
(x_to_win32_charset, win32_to_x_charset): New functions.
(win32_to_x_font): Use new height units.  Use win32_to_x_charset.
(x_to_win32_font): Use x_to_win32_charset.  Support Win32 font names
in addition to X font names.

(win32_load_font, Fx_list_fonts, Fx_display_color_cells,
Fx_display_mm_height, Fx_display_mm_width: Use GetDC directly.

(Fx_open_connection): Support external color mapping files.

(win32_abort): Map abort button to abort, retry to debug, and
ignore to continue.