Issue: SPR-11330

Issue: SPR-11213

Provided overloaded versions of `forField` and `forMethodParameter` that
accept a `ResolvableType` implementation type (as opposed to a Class).

Primarily added to allow resolution against implementation types that
have been created programmatically using `forTypeWithGenerics`.

Issue: SPR-11218

Change the previously package scope TypeDescriptor constructor to
protected and add a getResolvableType() protected method.

Issue: SPR-11303

Move the management of subscribers to the abstract parent class where
it belongs.

This commit makes the logging in TransactionalTestExecutionListener
consistent for both starting and ending transactions. Specifically,
the current TestContext is now included in the informational log
statement when starting a new transaction.

Issue: SPR-11323

Prior to this commit, it was necessary to override
the HandlerMapping definition to change properties
like useSuffixPatternMatch, useSuffixPatternMatch...

This commits adds new attributes on the
mvc:annotation-driven XML tag that allows to configure
such flags:
* use-suffix-pattern-match
* use-trailing-slash-match
* use-registered-suffix-pattern-match

Issue: SPR-10163

sockjs-client expects a prelude to be written on every request with
streaming transports. The protocol tests don't make this clear and
don't expose this issue.

The test case for SPR-11183 (writing 20K messages in succession) did
expose the issue and this commit addresses it.

Issue: SPR-11183

Introduced customizeConnection callbacks for URLConnection used by exists() / contentLength() / lastModified()

Issue: SPR-11320

Issue: SPR-11319

Issue: SPR-8182
Issue: SPR-11243
Issue: SPR-11292
Issue: SPR-11318

Issue: SPR-11314

Issue: SPR-11317

Introduced "globalInitializerClasses" next to the existing "contextInitializerClasses", applying to FrameworkServlets as well

Issue: SPR-11314

Issue: SPR-11297

Fixed getTypeDifferenceWeight algorithm in ReflectionHelper, and removed unused argsRequiringConversion storage

Issue: SPR-11306

Issue: SPR-11237

Issue: SPR-11256

Issue: SPR-11301

Better integrated explanation of the 'default' profile with both XML
and Java config examples showing the same thing.

Issue: SPR-11256

Issue: SPR-11307

When adding headers generically, MockHttpServletRequestBuilder now
recognizes Content-Type and updates the contentType field accordingly.

Issue: SPR-11308