* have system depend on asdf.
* know how to recover when signals dropped.
* define parallel-load-system, parallel-compile-system.
* make test executable as a shell script.
* I can make clisp break mostly reliably on fare-utils
 if both module pure and stateful depend on base as well as interface(!)
 it then claims "Cycle detected".

instead have the new operations depend on both "internal" component-depends-on
dependencies AND on "external" component-do-first dependencies, both frobbed.

Looks like it's working, now.

Make POIU depend on said ASDF version.

(thanks to Samium Gromoff for the bug report.)

1- Better explain how to use it.
2- Explain why we redefine classes. Sigh.
3- Use :keywords for LOOP keywords.
4- have the test auto-exit.

i.e. you can (asdf:load-system :poiu)
rather than manually doing (load "/path/to/poiu.lisp")