related to previous discussion with Kim and , an updated patch follows

the additional news:
fringe.c: i remove my bitmap redefinition (but i keep change
on default ALIGN of thos bitmap), and i move my bitmaps in a
customizable variable fringe-bitmap-group in fringe.el, which can be
	default nil
	tiny (0)
	small (1)
	medium (2)
all bitmaps valuea are defined in a octal string,
i was in dubt about the name of fringe-bitmap-group, is it fine or it
is better fringe-bitmaps-group or something else?

The fringe/fringe_inactive now react fine istantly when mouse is
moved or another window is selected.

[I'm waiting papers in my address box in Italy, right?]