[CMake] Disable pretty output

[Bill Hoffman]

Mike Jackson wrote:
> I _think_ that cmake defaults to a "Release" build if CMAKE_BUILD_TYPE 
> is not given. Someone from the CMake dev team can correct me one way or 
> the other.
> 

OK, so this is a quirky thing in CMake.  :)

On Linux/Unix the default is to have an empty CMAKE_BUILD_TYPE.  However 
for the Microsoft compiler on windows the default is Debug.


-Bill