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

Still used by Spring Security 2.0.x's NamespaceHandler etc.

Restore method signatures on MediaType

Previously the method signatures for includes and isCompatibleWith were
incompatible with Spring 3.2.x since the argument was now MimeType.
This caused NoSuchMethodError to be thrown when a class was compiled
against MediaType from Spring 3.2.x and ran against MediaType
from Spring 4.x.

This commit restores the signatures and implements each method by
invoking the super class method.

Issue: SPR-10860

Added AsyncRestTemplate, the asynchronous counterpart to the
RestTemplate that was introduced in Spring 3. All methods on the
AsyncRestTemplate are similar to those found on the synchronous
RestTemplatem, except that they return Future wrappers instead of
concrete results.

To enable this, this commit introduces the AsyncClientHttpRequest and
AsyncClientHttpRequestFactory, similar to the ClientHttpRequest and
ClientHttpRequestFactory, except that ClientHttpRequest returns a
Future<ClientHttpResponse> for the execute method. Two implementations
of these interfaces are provided, one based on the HttpURLConnection
incombination with a Spring AsyncTaskExecutor and one based on Apache
HttpComponents HttpAsyncClient.

Issue: SPR-8804

Issue: SPR-10840

This reverts commit 620c16f5.

Issue: SPR-10861

MockFilterChain should not be re-used across requests. This is not an
issue unless tests are executed concurrently. This change ensures the
MockFilterChain is re-created for each request in MockMvc.

Issue: SPR-10838

Fix @Condition evaluation to also consider super classes for both
@Configuration classes and regular @Components. This change allows
@Conditional annotations to be inherited and restores the previous
behavior of @Profile.

Issue: SPR-10840

Issue: SPR-10812

Issue: SPR-10583

Issue: SPR-10605

Issue: SPR-10825

Issue: SPR-10844

ResourceHttpMessageConverter tries to use the filename to determine the
media type, but for Resource implementations such as ByteArrayResource
it is null, which causes NullPointerException. The fix checks whether
getFilename returns null before attempting to determine the media type
by it.

Issue: SPR-10848

First try the endpoint type name converted to property
Then try @Component value

Issue: SPR-10605

Issue: SPR-10825

Issue: SPR-10810

Issue: SPR-10647

Issue: SPR-8738

Also fixing an old XmlBeanFactory test that relies on "ref local" which is gone in the 4.0 xsd now, redeclaring the affected file to an older xsd version.