missing files. [Fabio Priuli]
ui: when launching systems with mandatory carts, either from
command line or from the game selector, prompt the user with
the file manager menu so that he can mount a game where
needed, instead of killing emulation with an error. [Fabio Priuli]
out of whatsnew: it is now finally possible to launch nes and
snes and a2600 (and a few more) from the internal system
selector! also MESS doesn't error out anymore if you launch
such systems with no carts mounted from command line.
in short: emulation finally behaves as users typically expect!
