minimal value types proposal

[John Rose]

Brian and I have been working on finding a minimal subset
of value-type functionality that will allow current experiments
to move forward.  Here is what we have come up with.

Please let us know what you think.

— John

P.S. This is a resend with the HTML enclosed.  Previous version
had markdown source inline.

Link:  http://cr.openjdk.java.net/~jrose/values/shady-values.html