[CMake] Telling CMake to use zlibConfig.cmake instead of the Findzlib.cmake

[Brad King]

Alan W. Irwin wrote:
> I think the real problem here is the documentation of FIND_PACKAGE needs
> updating.
[snip]
> The meaning of the phrase "another project built by CMake" is not clear.  I
> cannot believe that is some arbitrary project somewhere on the net. 
> Even if
> it is is another project built on the same computer by the same user, then
> how does CMake find that project in the user's filesystem?

Actually the whole command needs updating.  Here is the future plan:

http://www.cmake.org/Bug/bug.php?op=show&bugid=3659

-Brad