NEXT.md described a packaging system with no visibility, no nesting and a link
that ignored the program, and explained sand's two files by it. All four are
now wrong. The Packages section says what the rules are; a new section says how
the link is decided and why the pruning has to take the functions as well as
the flags; and the sand section keeps the part that still stands — the headless
test needs no window on any target, which is a reason for two entry points and
never was a reason for two files.
The comments in load.ml and session.ml that used sim.flan to explain package
qualification now use vendor/agent, which is the package left with a defn in
it.
Joseph Ferano
f78c935b95