MAME 0.180 is my first MacOS Sierra Compile

Both MAME and QMC2 compiled flawlessly. Another huge ChangeLog in this version.

• Unfortunately the Metal backend is still broken, so I can stay only with OpenGL. This does not make me very optimistic about the future of Metal as far as MAME is concerned.
• Otherwise everything works as it should be. Also QMC2 is another rock solid release.

Let's see further what's inside of this for me...