[urgent][jdk10] RFR: JDK-8198658 Docs still point to JDK 9 docs

[Tim Bell]

Magnus:

> It was recently discovered that some URLs in JDK 10 still pointed to the
> "javase9" URL base.
>
> I intend to push this to jdk10/master, given suffient approval.

Acting as leader of the build group, I decorated the bug report and 
applied a 'jdk10-fix-yes' label.

> Bug: https://bugs.openjdk.java.net/browse/JDK-8198658
> WebRev:
> http://cr.openjdk.java.net/~ihse/JDK-8198658-update-docs-links-to-javase10/webrev.01

Looks good.

Tim