Closes gh-4440

This reverts commit acb3fb53.

See gh-4789

Fixes gh-4388

Ensure that log configuration errors always get reported.

Fixes gh-4461

Fixes gh-4461

* pr/4784:
  Make loggers private static final

Apply consistency across all static loggers.

Closes gh-4784

* pr/4783:
  Use Collections.isEmpty() instead of .size() == 0

Ensure that Collections.isEmpty() is used to check if there are no
elements in a collections. This is more explicit and can be faster than
calling .size().

Closes gh-4783

Closes gh-4719

Update the documentation to include a section about ServletContext
initialization with embedded servlet containers. This update is to
primarily highlight that `WebApplicationInitializers` and Servlet 3.0+
`ServletContainerInitializers` are not called.

Fixes gh-4643

If the user provides their own ServerProperties bean we want to peek
at it to see if they set the port (and only that) when we are deciding
if the actuator context needs to be created. This happens very early
(in a @Condition) so we need to be very defensive. There are already
quite a few checks in place to prevent a ServerProperties bean from
being instantiated unless we really need it, and yet, when it is
we can do more.

This change creates the bean (and the ManagementProperties) in a
throwaway BeanFactory using the same BeanDefinition as the main
context. This ensures that when the main context bean is created
it will be in the "natural" order and binding to the Environment
can take place as normal.

Fixes gh-4631

Closes gh-4790

Closes gh-4791

Closes gh-4789

The issue with Spring Data Gemfire has been resolved [1]

See gh-4786

[1] https://github.com/spring-projects/spring-data-gemfire/commit/34665d16ec543e85afcde174194ba5fbff44b841

* gh-4506:
  Update launch.script to append to $log_file rather than overwriting it

Closes gh-4506

See gh-4786

Exiting with 0 when cd fails is likely to be incorrectly interpreted
as success so we should exit with a non-zero value. Ideally, the init
script status action would exit with 4 but, at the point when
the cd is performed, we don’t even know if we’re running as an init
script. Exiting with 1 seems to be a reasonable compromise as it’s
fine for the non init-script case as well as being correct for all
init script actions other than status.

See gh-4653

Closes gh-4653

See gh-4163

Spring Data’s web support includes a handler method argument resolver,
ProxyingHandlerMethodArgumentResolver, that inaccurately claims that it
can handle all interface handler method arguments. This causes problems
for handler methods that take Spring Mobile’s Device as an argument as
the proxied Device instance does not behave correctly.

This commit works around the problem by assigning an order to the 
WebMvcConfigurerAdapter that registers Spring Mobile’s argument resolver
with Spring MVC. This ordering ensures that Spring Mobile’s resolver
takes precedence over Spring Data’s for Device arguments.

Closes gh-4163

This change permanently removes links from the endpoints that return
arrays or collections, and also disables them in the rest of the
endpoints (except /actuator) by default.

Fixes gh-4616

Closes gh-4597

* pr/4686:
  Log exception before sending to listeners

Change SpringApplication exception handling to log details before calling
the SpringApplicationRunListeners. Prior to this commit it wasn't possible
for a listener to shutdown logging.

Fixes gh-4680
Closes gh-4686

* pr/4780:
  Fix mail connection test exception message

Closes gh-4780

Allow users to easily opt-opt of using the start-stop-daemon in the
launch script. This may be required on distros that include older
versions.

Fixes gh-4732

* pr/3847:
  Auto-configure Elasticsearch converter and context

Extend ElasticsearchDataAutoConfiguration to also configure an
ElasticsearchConverter and SimpleElasticsearchMappingContext both
of which are required for Spring Data REST.

Closes gh-3847