MESS SVN r13588 (Multi EMu)

[Scatman]

r13580
Added GCC check in windows.mak and win32 part of sdl.mak and also did silence of gcc 4.6 in win32 specific video.c (no whatsnew)
r13581
pc8801_flop: more list reorganization. no whatsnew.
r13582
Sync with MAME and source cleanup (no whatsnew)
r13583
[VICTOR9K] Cleanup. (nw)
r13584
smsvdp.c: Renamed some methods. (nw)
r13585
less ugly way to silence gcc 4.6 (no whatsnew)
r13586
pc8801_flop: more info added. no whatsnew.
r13587
[MSX] Fixes for z80 cycle timing from hap (nw)
r13588
mac: add some new documentation, fix "no keypress" code for ADB systems (nw)

http://mess.dorando.at/svn/