Converted ioport reads to use required_ioport in Tempest.
ym2612: Sync timer fixes from GenPlus-GX, fixes MT #5049. [Enik Land]
Removed dead code
Fixed Vega (Olympia) text layer.
Fixed dai.c regression. (nw)
Blind attempt at fixing ay31015 problems (can't repro) (nw)
Small typo fix. Doesn't fix covox_stereo regression. (nw)
(MESS) Added a hack to stop stereo covox from crashing due to startup ordering issue. (nw)
namcoic.c: remove legacy read/write handlers [Alex Jackson]
Tempest: instead of running at perfect interleave constantly use boost_interleave when address ae1f is read. Brings tempest back to 800%
new clone
Fire Hawk (vertical) [system11] (NOT WORKING, incomplete dump)

(from Dumping Union, it's not going to work unless the graphic roms etc. are also dumped, clones of these things need complete dumps, especially when they're a different orientation - the existing roms won't work)
tweaked comments a bit based on further info (nw)
new clones
Borench (set 2) [zozo]
VS Mahjong Otome Ryouran (newer) [arcademodbios]
Pong: Don't use "high" where analog source "V5" is more appropriate.
a bit faster this way =)
(MESS) Apple 1: Added support for expansion slot, moved cassette interface to a card to match reality. [R. Belmont]
msm6255: Cleanup. (nw)
8042kbdc: PULSE_LINE appears not to work through devcb2 (nw)
(MESS) pet: Added user port diagnostic connector. [Curt Coder]
(MESS) Apple I: Support CFFA1 Compact Flash/IDE adaptor [R. Belmont, based on a patch by Christopher Bachmann]