Closes gh-8938

See gh-8938

This commit reverts 2deab52a as the Couchbase driver must be upgraded from
2.2.x to 2.4.x

See gh-8938

Closes gh-8938

* pr/8935:
  Upgrade to Spring Integration 4.3.9.RELEASE

Closes gh-8935

Closes gh-8712

* pr/8929:
  Upgrade to Spring AMQP 1.6.9.RELEASE

Closes gh-8929

Closes gh-8497

* pr/8906:
  Polish "Fix statsd metrics collection for names with ":""
  Fix statsd metrics collection for names with ":"

Closes gh-8906

Statsd server is ignoring malformed metrics. This change introduces
a basic sanitizing to metric names for avoid losing those metrics.

See gh-8906

Rename `AbstractTemplateAvailabilityProvider` to
`PathBasedTemplateAvailabilityProvider`.

Closes gh-8913

Closes gh-8903

Closes gh-8895

Closes gh-8892

Closes gh-8232

Closes gh-6911

Closes gh-8497

Fixes gh-8883

See gh-8879

* pr/8185:
  Polish "Clarify edge case docs on ConditionalOnClass"
  Clarify edge case docs on ConditionalOnClass

Closes gh-8185

When used as a meta-annotation the value() attribute of
@ConditionalOnClass will fail silently resulting in the @Conditional
nature of the annotation being ignored.

See gh-8185

As `@TestComponent` is an implementation detail at this point really, this
commit removes any reference to it from the doc.

Closes gh-8421

Closes gh-8842

* pr/8703:
  Polish "Document HTTP response format of health endpoint"
  Document HTTP response format of health endpoint

Closes gh-8703

Add HTTP response format details for health endpoint, including default
status codes and sample responses.

See gh-8703

This commit changes the solr health indicator to request the status of
all available cores, rather than invoking a generic ping on the admin
handler.

Recent versions of Solr now have a ping handler per core and the general
admin handler is gone, leading to incorrect health status. For backward
compatible reason the `solrStatus` attribute is kept to `OK` if all cores
are running properly (that's actually `0` behind the scenes).

Closes gh-8463

* pr/8829:
  Allow to disable max http post size limit

Closes gh-8508

It should have been removed in 2522a5f9

Closes gh-8702

Closes gh-8841