Issue: SPR-13951

This change makes clear that this is the intent of the CacheControl API
not to provide a way to configure both "no-cache" and "no-store"
directives for the "Cache-Control" header.

Issue: SPR-13780

Check that the path is valid and resolvable before checking that the
http method is supported. For invalid or unresolvable paths, always
respond with a 404.

* pr/957:
  Polish contribution
  Decrease allocation rate for CacheOperation

Closes gh-957

* pr/960:
  Polish doc

Closes gh-960

Issue: SPR-11787

Issue: SPR-13406

Issue: SPR-13480

Use synchonous API for synchonous OkHttp requests

This commit changes the OkHttpClientHttpRequestFactory to use the
synchronous OkHttp API for non-async requests, as opposed to
synchronizing the async API (which it used to do).

Issue: SPR-13942

Support for SmartObjectFactory injection points with programmatic optionality and lenient not-unique handling

Issue: SPR-13943

Issue: SPR-13941

* pr/961:
  Remove duplicate method from reference docs

Closes gh-681
Issue: SPR-13940

Issue: SPR-12857
Issue: SPR-13905

Issue: SPR-13571

Issue: SPR-12857
Issue: SPR-13905

Issue: SPR-13931

Issue: SPR-13693

Issue: SPR-13928

Issue: SPR-13929

Issue: SPR-13935

Issue: SPR-13913

This commit speeds up the AntPathMatcher implementation by
pre-processing patterns and checking that candidates are likely
matches if they start with the static prefix of the pattern.

Those changes can result in a small performance penalty for positive
matches, but with a significant boost for checking candidates that don't
match. Overall, this tradeoff is acceptable since this feature is often
used to select a few matching patterns in a much bigger list.

This will lead to small but consistent performance improvements in
Spring MVC when matching a given request with the available routes.

Issue: SPR-13913

Issue: SPR-13932