We haven't run into this limit yet, but everytime I see a 'stream overflow'
error I run into it while going over all the knobs in apps/subx-params.subx,
if I increase Input-size (used by survey.subx) too much.
Rename a few scripts to be more consistent.
I'm also starting to feel the urge to bud off `subx run` into its own program,
say tools/emulate_x86. It doesn't really rely on the SubX notation at all.
And then I could rename `subx translate` to `translate_subx_bootstrap`.
Only problem: the commands in the Readme get verbose. But the Readme is
gonna need surgery soon anyway to put translate_mu front and center.
Kartik Agaram