snes_ppu_device: removed unneeded running_machine parameter were it wasn't needed and removed some machine().first_screen() calls (nw)
fixed linking on FreeBSD (nw)

also simplified network part in sdl.mak a bit
c128.c: removed duplicate macros (nw)
Move some includes around to fix compile errors on OSX; if this breaks any other environments then feel free to revert this. (nw)
Merge branch 'master' of https://github.com/mamedev/mame