[9] Review request: JDK-8167508 ant-javafx.jar and jdk.packager runtime version check

[Chris Bensen]

Kevin,

Please review this change to have ant-javafx.jar check the version of Java that is running it and match the version it was intended to run with by comparing against a version string that is stored in the jar file.

JIRA: https://bugs.openjdk.java.net/browse/JDK-8167508
Webrev: http://cr.openjdk.java.net/~cbensen/JDK-8167508/webrev.01/

Chris