See gh-11510

* pr/11510:
  Polish

Closes gh-11510

Fixes gh-11383

See gh-10516

Fixes gh-10516

See gh-11503

See gh-11501

This reverts commit f91f8f7e.

See gh-11475

* pr/11489:
  Polish
  Full editing pass plus linking

I made a complete editing pass plus another pass to see where I could add more links, both within the document and to other parts of Spring. The result was a thorough edit (though I'm sure I missed things, purely due to the size of the thing).

Closes gh-10133

Closes gh-11490

This commit shades the json API in the configuration processor so that
it doesn't bring `android-json` to the classpath anymore.

Closes gh-10307

Change `CacheMeterBinderProvider` to include a cache type
generic which helps to simplify implementations. Also move
and extract a few classes.

See gh-11221

Update the validator background initializer to actually create
the validator.

Closes gh-11412

This commit configures Jetty for HTTP/2 support as soon as the following
conditions are met:

* `server.http2.enabled=true`
* Both `org.eclipse.jetty:jetty-alpn-conscrypt-server` and
`org.eclipse.jetty.http2:http2-server` are on classpath

This will use the Conscrypt library for ALPN and TLS support using
native libraries shipped within the Conscrypt uber Jar. This does not
require a JVM agent or patching the JDK classes.

Closes gh-10902

See gh-11235

Closes gh-11221

Closes gh-11483

Closes gh-11482

Closes gh-11481

Closes gh-11480

Closes gh-11479

Closes gh-11478

Closes gh-11477

Closes gh-11476

Closes gh-11475