[stella] stella 4a50

[Andrew Davie]

I'd like to formally request through the list that Stella with 4a50
capability be released real soon now.  4a50 is a pretty snazzy banking
scheme; I'm sure that moving to it will improve the rats-nest of
bankswitching that I have now and probably help out with speed, too.
So, in the interests of the Atari community :)  can we please have a 4a50
Stella soon?!!
Cheers
A