[Xastir] please change INSTALL doc

[Derrick J Brashear]

On Sun, 27 Feb 2005, Andrew Rich wrote:

> In the INSTALL doc
>
> This does not exist anymore
>
> ftp://ftp.imagemagick.org/pub/ImageMagick/ImageMagick-5.5.7-10.tar.gz

Changing this every time they do would be very tedious, seeing as there 
have apparently been 24 versions since it was last updated.

However, I just committed an update which points at the current one and 
suggests that it may be out of date by the time someone reads it and 
suggests where to look for newer versions.