TS input : only one audio & spu ES selected at a time

TS input : only one audio & spu ES selected at a time
Intf : ts streams in menu
       fixed a typo

There be certainly need for debug on the TS input as vls complains about
wrong sized PES packets, and that many streams do not seem to work.

btw, I forgot to mention in my last commit the function that nooone will
ever use : "right button" key of 105 keys keybords support under X11,
Xv, Sdl