(MESS) compclr2: Emulated the keyboard and floppy WIP. (nw)

(MESS) dai: Updated to use new TMS5501. (nw)

tms5501: Rewrote the emulation to use devcb2 and diserial. [Curt Coder]

flopimg: Added preliminary support for the 8-N-1 serial encoding scheme used on Compucolor II floppies. [Curt Coder]