Includes Hibernate ORM 5.1.17 for integration tests.

Prior to this change, ResourceUrlEncodingFilter would try to resolve
the resource path using request URL without removing fragment first,
whereas only paths should be used.

This commit synchronizes behavior of ResourceUrlEncodingFilter with
behavior of ResourceUrlProvider.

Issue: SPR-17535

Issue: SPR-15540

Issue: SPR-17518

Includes JAX-WS 2.3.1, Awaitility 3.1.3, OkHttp 3.12, Woodstox 5.2.

Closes gh-2019

See gh-2019

Issue: SPR-17450

Issue: SPR-17086

Issue: SPR-17460

Issue: SPR-17442

Issue: SPR-17446

Prior to this commit, `ResourceTransformerSupport.toAbsolutePath`
would call `StringUtils.applyRelativePath` in all cases. But this
implementation is prepending the given path even if the relative path
starts with `"/"`.

This commit skips the entire operation if the given path is absolute,
i.e. it starts with `"/"`.

Issue: SPR-17432

Prior to this commit, the `ResourceUrlEncodingFilter` would wrap the
response and keep a reference to the request. When
`HttpServletResponse.encodeURL` is later called during view rendering,
the filter looks at the request and extracts context mapping information
in order to resolve resource paths in views.

This approach is flawed, when the filter is used with JSPs - if the
request is forwarded to the container by the `InternalResourceView`,
the request information is overwritten by the container. When the view
is being rendered, the information available in the request is outdated
and does not allow to correctly compute that context mapping
information.

This commit ensures that that information is being extracted from the
request as soon as the `ResourceUrlProvider` is set as a request
attribute.

Issue: SPR-17421

The fix for SPR-17178 switched from debug to warn level warning for
all sub-classes of AbstractHandlerExceptionResolver where the request
concerned the DefaultHandlerExceptionResolver only.

This commit restores the original DEBUG level logging that was in
AbstractHandlerExceptionResolver from before SPR-17178. In addition
DefaultHandlerExceptionResolver registers a warnLogCategory by default
which enables warn logging and hence fulfilling the original goal
for SPR-17178.

Issue: SPR-17383

This reverts commit 162112.

Instead we'll go for a bigger rollback of the change from SPR-17178 so
that only DefaultHandlerExceptionResolver does warn logging by default.

Issue: SPR-17388

Issue: SPR-17383

Issue: SPR-16391

Replace all method level comments related to forwaded headers, some
current and some outdated, with a single class-level comment.

Issue: SPR-17317

Issue: SPR-17279

1. Helper method to eliminate duplication in formatting (de-)serialized
   values for logging introduced with prior commit #e62298.

2. Helper method for TRACE vs DEBUG logging with different details.

Issue: SPR-17254

At DEBUG show up to 100 chars, at TRACE show full formatted value.

Note that the formatValue helper method is duplicated a number of times
in this commit. A utility method will likely be added in spring-core
through an extra commit.

Issue: SPR-17254

Includes reordering of web dependency declarations.

Includes Hibernate ORM 5.1.16 and Hibernate Validator 6.0.13.

Also includes Apache Johnzon 1.1.9.

Issue: SPR-17255

`ForwardedHeaderFilter` instead of `ForwardedHeaderFiller`