bug#20271: 24.4; Can't change cursor type in w32

[Eli Zaretskii]

> From: joaotavora@gmail.com (João Távora)
> Cc: 20271@debbugs.gnu.org
> Date: Tue, 14 Apr 2015 13:45:05 +0100
> 
> Sorry for the delay. Here's a proposed entry, though it does not say
> much more than what I have said now. There is apparently no way to "turn
> if off" in a way that it doesn't affect more Emacs sessions. All you can
> do is close its little window. 

I added a description of how to turn off the Magnifier and pushed the
change.

Thanks.