Closes gh-22463

Includes RxJava 2.2.6, Netty 4.1.33, Undertow 2.0.17.

Includes Hibernate ORM 5.4.1 for integration tests.

Closes gh-22337

See gh-22337

Fixes #22306

Fixes #22287

Fixes #22159

Includes OkHttp MockWebServer 3.12.1.

Typically a straight up equals as well as Collections#contains
checks for MediaType.ALL is susceptible to the presence of
media type parameters.

This commits adds equalsTypeAndSubtype as well as an
isPresentIn(Collection<MimeType>) methods to MimeType to faciliate
with checks for MediaType.ALL.

Issue: SPR-17550

Includes JRuby 9.2.5 and Jetty Reactive HttpClient 1.0.2.

String.indexOf() expressions can be replaced with a call to the String.contains() method available in Java 5 and newer.

Replace the full category capped at 36 chars with the class name only
and 1 char per package, e.g. org.apache.commons.Foo -> o.a.c.Foo

Includes Hibernate ORM 5.1.17 for integration tests.

Prior to this change, ResourceUrlEncodingFilter would try to resolve
the resource path using request URL without removing fragment first,
whereas only paths should be used.

This commit synchronizes behavior of ResourceUrlEncodingFilter with
behavior of ResourceUrlProvider.

Issue: SPR-17535

Issue: SPR-15540

Issue: SPR-17518

Includes JAX-WS 2.3.1, Awaitility 3.1.3, OkHttp 3.12, Woodstox 5.2.

Closes gh-2019

See gh-2019

Issue: SPR-17450

Issue: SPR-17086

Issue: SPR-17460

Issue: SPR-17442

Issue: SPR-17446

Prior to this commit, `ResourceTransformerSupport.toAbsolutePath`
would call `StringUtils.applyRelativePath` in all cases. But this
implementation is prepending the given path even if the relative path
starts with `"/"`.

This commit skips the entire operation if the given path is absolute,
i.e. it starts with `"/"`.

Issue: SPR-17432