Const correctness
Merge branch 'master' of ssh://mess.org/mame
Not everyone calls the base device_start, but they do call the base init() (nw)
Miscellaneous cleanups to src/emu/ui/menu.?, also added some accessors
added text diagram of iqunlim board from original submission (nw)
placeholder
(mess): Floppy subsystem documentation checkpoint.  Incomplete, but
there's too many people looking at it not to push it. [O. Galibert]