configure: pass `--enable-portable-binary' to libffi configure

The `--enable-portable-binary' flag disables optimizations specific
to the build machine's processor that may ne unportable to other
machines.

This also fixes a problem where a VirtualBox runs on an x86_64 machine
with AVX support, and so `congure' enables AVX operations, but AVX
doesn't work within a virtual machine.
remove debugging printout
fix and fill in responsibility props
add "distributed-places" package

Joins the "-lib" and "-doc" packages.
rename "typed-racket-tests" package to "typed-racket-test"