RFR: 8144062: Move jdk.Version to java.lang.Runtime.Version

[Iris Clark]

Hi, Jon.

>>      http://cr.openjdk.java.net/~iris/verona/8144062/webrev.1/

> Langtools changes are OK, including the indirect use of the revised
> Version in jar-fs.

Thanks for the Review.

Regards,
Iris