Issue: SPR-14305
(cherry picked from commit 9a417743)

Issue: SPR-14337

Issue: SPR-14336

The contextPathOverride property is now gone.
X-Forwarded-Header (if present) is used instead of the contextPath.

Issue: SPR-14270

Issue: SPR-14333

Issue: SPR-14332

Issue: SPR-14328

Issue: SPR-14329

Issue: SPR-14330

Issue: SPR-14327

Issue: SPR-6310
Issue: SPR-6327

Issue: SPR-14245

Issue: SPR-14313

Issue: SPR-14270

See SPR-14270

Issue: SPR-14323

Before this change Consumes/ProducesRequestCondition shared a common
match method in the package private AbstractMediaTypeExpression. The
benefit, two lines of code, was negligible but was forcing each
condition into parsing the content type of the request body or
evaluating the content type for the response respectively.

This change removes the shared match method and brings it down into
each sub-class resulting in a performance improvement as well as in
simpler code including exception handling.

Issue: SPR-14299

Issue: SPR-14299

Issue: SPR-14312

Previously MockMvcWebConnection did not update the cookie manager with the
cookies from MockHttpServletResponse. This meant that newly added cookies
are not saved to the cookie manager and thus are not presented in the next
request.

This commit ensures that MockMvcWebConnection stores the response cookies
in the cookie manager.

Issue: SPR-14265

Issue: SPR-11373