DefaultListableBeanFactory leniently deserializes into dummy factory if serialization id not resolvable

Issue: SPR-14117

Issue: SPR-13706

Issue: SPR-14116

Latest dependency updates (Caffeine 2.2.6, EhCache 3.0 RC2, Joda-Time 2.9.3, Netty 4.0.36, Rome 1.6, SLF4J 1.7.21, Tomcat 8.0.33, Undertow 1.3.20, Woodstox 5.0.2, JOpt-Simple 5.0)

Previous refactoring (fcf6ae and also 43d937) in the SockJsSession
hierarchy consolidated access to the request and response in the
base class AbstractHttpSockJsSession in order to keep synchronization
concerns there. However that also unintentionally removed the call to
resetRequest() after sending a heartbeat for any of the
PollingSockJsSession classes. In general a polling session should call
resetRequest after every frame written.

This commit brings back the writeFrame override in PollingSockJsSession
with an extra call to resetRequest().

Issue: SPR-14107

Prior to this commit, the size of the ApplicationContext cache in the
Spring TestContext Framework could grow without bound, leading to
issues with memory and performance in large test suites.

This commit addresses this issue by introducing support for setting the
maximum cache size via a JVM system property or Spring property called
"spring.test.context.cache.maxSize". If no such property is set, a
default value of 32 will be used.

Furthermore, the DefaultContextCache has been refactored to use a
synchronized LRU cache internally instead of a ConcurrentHashMap. The
LRU cache is a simple bounded cache with a "least recently used" (LRU)
eviction policy.

Issue: SPR-8055

Commit 48236b from 2014 introduced a logging improvement to avoid
logging each removed session per line and instead log one line at
the end with all removed sessions ids. However that list of removed
session ids wasn't populated. This commit fixes that.

Issue: SPR-14111

Ignore container's auto-startup once the context is refreshed.

Issue: SPR-14015

* pr/1027:
  Fix typo

Closes gh-1027

Issue: SPR-14108

Issue: SPR-14097

Issue: SPR-14110

Issue: SPR-14109

Issue: SPR-14104

Issue: SPR-14100

This commit documents the @Ignore'd test to explain that Spring does not
support a hybrid approach for annotation attribute overrides with
transitive implicit aliases.

Issue: SPR-13554

Issue: SPR-11106

Includes consistent applicability of class-level metadata to user-level methods only.

Issue: SPR-14017
Issue: SPR-14095

Issue: SPR-14095

Issue: SPR-13475

Issue: SPR-13973

OkHttp3 introduces a new package and API that is incompatible with
previous versions. This commit adds a new
OkHttp3ClientHttpRequestFactory and supporting classes.

This commit reverts the recently added merged annotation support for
Spring's JMX annotations by once again using the simpler searches for
repeatable annotations in AnnotationUtils.

Issue: SPR-13973

Prior to this commit, the `HttpInvokerServiceExporter` would close
its `ObjectOutputStream`, which itself issues duplicate flushes on the
underlying `OutputStream`. Duplicate flushes can lead to multiple,
separate TCP packets where those should be gathered writes.

This commit wraps the underying stream with a decorator that guards
against flush calls that are duplicated with the one done in `close`.

Issue: SPR-14040

Prior to this commit, HTTP clients relying on the JDK HTTP client would
not properly reuse existing TCP connections (i.e. HTTP 1.1 persisten
connection). The SimpleClientHttpResponse would close the actual connection once the
response is handled.

As explained in the JDK documentation
(http://docs.oracle.com/javase/8/docs/technotes/guides/net/http-keepalive.html)
HTTP clients should do the following to allow resource reuse:

* consume the whole HTTP response content
* close the response inputstream once done

This commit makes sure that the response content is
totally drained and then the stream closed (and not the connection).

Issue: SPR-14040

Issue: SPR-14089

Issue: SPR-14093

Issue: SPR-14094