Makefile for mac os x / mess
Fix unused field
Add gitignore
Revert "(MESS) Apple II: implemented cycle-exact Disk II floppy controller using the modern floppy subsystem. [O. Galibert, R. Belmont]"

This reverts commit 5f69e1bf25f5fa9bde67f9e4007937c2e16e670d.

Conflicts:
	src/emu/bus/a2bus/a2diskiing.c
	src/emu/machine/wozfdc.c
	src/emu/machine/wozfdc.h