Must use expect now for some reason, and I only know how to make it work
nicely if the arguments come from CLI arguments instead of stdin.
Document it on a dedicated section.
Fix#29
Otherwise, on the git module update fallback, QEMU's submodules don't get updated.
Also add a --recursive to the main qemu clone, just in case they add
submodules to the submodules in the future.
Document that X11 mouse is not moving.
Convert x='' to x= on all scripts, and also fix case ;; indentations.
Add dummy value to QEMU's -trace enable= to prevent warning.
Expand built-in package choice rationale.
Get rid of br2_parsec, since there are just too many possible variations on that file.
Blow up the gem5 vs qemu table to make it saner, add missing aarch64 entries.
Make sections titles describing number of cores and memory size emulator agnostic.
