RFR: JDK-8282214: Upgrade JQuery to version 3.6.0 [v2]

[Hannes Wallnöfer]

> This is a straightforward change to update the jQuery library used in javadoc to version 3.6.0. 
> 
> Both compressed and uncompressed versions of jQuery 3.6.0 were downloaded from https://jquery.com/download/ to replace the old version and all references in javadoc src and test code were updated to the new files. 
> 
> In addition to running javadoc tests I did a manual test of features that use jQuery (search and mobile navbar) in Firefox, Chrome and Safari and they all work as expected.

Hannes Wallnöfer has updated the pull request incrementally with one additional commit since the last revision:

  One more version to update

-------------

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/7694/files
  - new: https://git.openjdk.java.net/jdk/pull/7694/files/1f763e5b..f9f964d5

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=7694&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=7694&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7694.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7694/head:pull/7694

PR: https://git.openjdk.java.net/jdk/pull/7694