Used a new opcode, from VF2
More sane Model 2 video refresh rates (read: copied from System 24, which makes sense at the end of the day)
Submit for regression test.
Naomi: documentation update [f205v]
a2bus_device and a2eauxslot_device: converted to devcb2 (nw)
converted i8255 to devcb2. nw.

p.s. I tested several games/systems and I triple checked the diff to be sure I did not 
make any copy and paste mistake in the 195 files touched by this, but let me know 
if any system suddenly stops working!
(MESS)-thomson: fix for incorrect palettes in a seldom used video mode [Antonie Mine]

(MESS)-hp48: fix for memory cards and addition of imgtool support for it [Antonie Mine]
Fixed compile. (nw)
reverting to classic ui due to lot of issues, as much as I hate reverting some else code (nw)
converted i8271 to use inline configs and reduced tagmap lookups
while at it. nw.
modernized nvram (nw)
modernized cybiko nvram and supported all models (nw)
Created memcard as device and removed it from machine/generic (nw)
This should be image device instead but did not wish to change
behavior for now
should be MEMBER, not HANDLER (nw)
MEMBER not a HANDLER (nw)
leftover from past (nw)
midezeus modernized and lot moved to _state, also made midzeus2_state separated, legacy_poly should be removed in future (nw)
made neogeo card an image device (nw)
Removed not used option (nw)
Wyvern F-0 driver

ROMs will be uploaded in a minute ;)

New games added or promoted from NOT_WORKING status
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Wyvern F-0 [Guru, ????]