constant-dynamic specification, updated

[John Rose]

I have updated the javadoc API that is relevant to the proposed
JVM features for dynamic constants and more powerful bootstrap
methods.

http://cr.openjdk.java.net/~jrose/jvm/condy-jvms-2017-0620.html

Here is a rough draft of the corresponding JVMS changes:

http://cr.openjdk.java.net/~jrose/jvm/specdiff-condy-2017-0624.zip

Please enjoy and comment.

— John