[Jprogramming] clean working environment

[Dan Bron]

I've put up a Wiki page on "state in J".  Be warned:  at the moment its formatting can be best described as stream-of-consciousness.  But I believe it's pretty comprehensive on what state J sessions can carry around:

   http://www.jsoftware.com/jwiki/DanBron/Temp/StateInJ

I encourage everyone to add to, edit, reformat, and make notes on the page.

-Dan