Ensure configuration provided for WebSocketHandler's (eg interceptors,
or HandshakeHandler) are passed on to the SockJsService if congiured.

Better separate Servlet-specific parts of the configuration to make it
more obvious where non-Servlet alternatives could fit in.

Add more tests.

Improve WebSocket integration tests.

Issue: SPR-10880

Issue: SPR-10884

Issue: SPR-10876

Issue: SPR-10272

Issue: SPR-1528

Issue: SPR-10456

Previously, the negotiated version was included in the CONNECTED frame
using the accept-version header. This is incorrect. The version
header should be used.

* httpclient_4_3:
  Post SPR-8804 optimizations: better use of HC 4.3 APIs

Issue: SRP-10868

Issue: SPR-10605

Issue: SPR-10835

# By Antonio Marrero
* pull304:
  Assign lowest priority to `/**` pattern

Update AntPathMatcher Comparator to treat `/**` in the same way as
`null` paths.

Prior to this commit the pattern `/**` would be picked in preference
to patterns with 3 or more PathVariable (e.g. `/matches/{matchId}/
periods/{periodId}/teams/{teamId}/results`).

Issue: SPR-10550

Refine AntPathMatcher.combine rules to allow direct concatenation of
patterns when pattern1 does not contain '*.'. Prior to this commit
direct concatenation was allowed when pattern1 did not contain '.',
this prevented calls of the form:

	pathMatcher.combine("/1.0", "/foo/test")

from working as expected.

This commit also applies some general cleanup to the `combine` method.

Issue: SPR-10554

# By Grzegorz Rożniecki
* SPR-10798:
  Fix malformed code in documentation

Fixed code snippets in "Handling complex types for stored procedure
calls" paragraph.

Issue: SPR-10798

# By clemp6r
* SPR-10850:
  Fix elvis operator mistake in reference docs

In the given example the expression using the Elvis operator will
return "Nikola Tesla" and not "Mike Tesla".

Issue: SPR-10850

@Bean methods are allowed to override existing bean definitions with a role other than ROLE_APPLICATION now (e.g. framework-generated default beans)

Also, DefaultListableBeanFactory logs a warning when overriding an application definition with a framework-generated definition now, which is expected to be an accident.

Issue: SPR-10607

Issue: SPR-10866

Added documentation on the support for gzip encoding using the
DecompressingHttpClient in Apache HttpComponents.

Issue: SPR-7874

Issue: SPR-8804

We're using the same subtle PriorityOrdered/Ordered/non-ordered separation as for regular BeanFactoryPostProcessors and BeanPostProcessors now. Additionally, we're re-detecting BeanDefinitionRegistryPostProcessor bean names after every invocation phase, up until no further ones appear.

Issue: SPR-10630

Issue: SPR-10711

Issue: SPR-10835

This turned into a rather huge affair since it led to the introduction of a new AutowireCandidateResolver implementation in the spring-context module. That ACR impl is now being set through AnnotationConfigUtils; GenericApplicationContext and co do not set a default QualifierAnnotationAutowireCandidateResolver anymore (which has always been a smell anyway).  At the same time, dependency ordering has moved from AutowiredAnnotationBeanPostProcessor to DefaultListableBeanFactory itself through a "dependencyComparator" strategy, applying to constructor dependencies and lazy resolution proxies as well.

Issue: SPR-10353

Restoring consistency with AnnotationConfigApplicationContext.

Issue: SPR-10852