Document `spring.jackson.serialization-inclusion`.

Closes gh-3224

AmqpAdmin does not require a CachingConnectionFactory. Using the more
general CachingConnectionFactory provides more flexibility.

Closes gh-3220

Closes gh-3218

* patch-21:
  Fix meta-data for spring.jmx.server
  Fix mbean server property

See gh-3211

`spring.jmx.server` was incorrectlyt documented as
`spring.jmx.mbean-server` in the documentation.

Closes gh-3211

Closes gh-3107

Update `Restarter` to support a `FailureHandler` strategy that can be
used to determine how to deal with errors. The
`LocalDevToolsAutoConfiguration` now uses a strategy that doesn't quit
the application, but instead continues to wait for further file changes.

This helps make restart much more usable in situations where you
accidentally break code.

Fixes gh-3210

It can just catch all exceptions from the remote /user endpoint
because in a resource server it needs to throw `InvalidTokenException`
and in an SSO setting it will never be called.

Fixes gh-3205

See gh-3088

Fixes gh-3088

Allow the Restarter to be disabled via a System property.

Fixes gh-3173

Previously, spring.groovy.template.configuration.* was mapped onto both
GroovyTemplateProperties.configuration and GroovyMarkupConfigurer. The
former being a Map and the latter being specific type with getters and
setters. This clash caused problems with the IDE support.

GroovyTemplateProperties.configuration appeared to be dead code so it
was removed in 326bdf29. Unfortunately this broke the use of
spring.groovy.template.configuration.* properties as
GroovyTemplateProperties uses a prefix of spring.groovy.template and it
no longer had a configuration property.

This commit addresses the problem by updating GroovyTemplateProperties
to ignore unknown fields. This allows
spring.groovy.template.configuration.* properties to be used and bound
to GroovyMarkupConfigurer without reintroducing the clash which prompted
the initial change.

Closes gh-3198

Closes gh-3124

Closes gh-3051

Closes gh-3195

Closes gh-3194

Closes gh-3192

Closes gh-3189

Closes gh-3188

Closes gh-3187

Closes gh-3186

Closes gh-3185