[lugaru] Mac OS X build process

[Wolf Mathwig]

Hi,

I've successfully built Lugaru on Mac OS X 10.6.3 by removing the 
following sourcecode:
MoreFilesX.h
MoreFilesX.c
MacInput.h
MacInput.cpp
OpenGL_Full_Screen.cpp

The code in MoreFilesX.h collides with Files.h from the recent SDK. 
MacInput.h is only referenced in OpenGL_Full_Screen.cpp.

Of course, I had to remove these references in Source/CmakeLists.txt as 
well.

Furthermore, I had to copy the directory OpenAL/include/AL to Source/.

I don't know if these changes affect the build process on other 
platforms, it doesn't seem like it though.

Have a nice day,
Wolf