* gmc-chargrid.c: Changed the struct attr with pointers mess with
something saner.
Added an in_resize flag to avoid calling our internal signal
handlers recursively.
(gmc_char_grid_draw): Added proper draw handler for our case; the
widget's window does not fill its allocation.
(paint): New wrapper for update_region(); it converts window
coordinates to row/column character coordinates.
(gmc_char_grid_expose): Use paint().
276761aa48