This reverts commit 4c26b0c1.

This reverts commit 09395f95.

Update EndpointWebMvcAutoConfiguration to no longer catch and ignore
EmbeddedServletContainerExceptions. Since commit 764e34b9, starting a
management on a different port is not even attempted when running in a
classic servlet container. This means that the catch/log logic (which
was originally added in 45315a97) is no longer necessary, and only
serves to hide genuine problems.

Fixes gh-4064

Wrap Tomcat start errors in EmbeddedContainerException.

Fixes gh-4204

Wrap Undertow start errors in EmbeddedContainerException.

Fixes gh-4205

Update `UndertowEmbeddedServletContainerFactory` so that the
`ClassPathResourceManager` is no longer registered by default.

Prior to this commit the resource manager would be registered whenever
a valid document root could not be found. This had the effect of
exposing all classpath files.

Fixes gh-4015

This commit adds a dedicated property to specify the active profiles to
use when running an application via the Maven plugin. This works also
on the command line using the `run.profiles` system property and is
consistently applied whether the process is forked or not.

Closes gh-4199

Closes gh-4020

Closes gh-4019

See gh-4191

Change `SpringBootServletInitializer` so that the logger is created
in `onStartup` rather than on class creation. The allows logging to
be initialized in an different WebApplicationInitializer.

Fixes gh-3704

Update spring-boot-security-tests to use standard module names.

Fixes gh-4101

* pr/4137:
  Use start-stop-daemon if present in launch.script

Update `launch.script` to use `start-stop-daemon` when possible to
manage daemon processes. When `start-stop-daemon` is not available `su`
is used.

Closes gh-4137

Update ApplicationTemp so that `dir` is used in preference to `folder`.
This better aligns with the existing ApplicationHome class.

Fixes gh-4192

Add support for a `server.session.store-dir` property which can be used
to specify where session data source be saved.

Fixes gh-4191

Update TomcatEmbeddedServletContainerFactory so that session data isn't
serialized by default. Prior to this commit the SESSIONS.ser file would
either be written to `/tmp` or into `baseDir` (if one was set).

By not saving session data we align Tomcat with the other embedded
servlet containers and reduce the risk of sensitive information being
left in `/tmp`.

Fixes gh-4156

* gh-4168:
  Add `spring war` command

Add a `war` command to the CLI to generate WAR archives.

Fixes gh-925
Closes gh-4168

Closes gh-4184

Closes gh-4183

Closes gh-4182

Closes gh-4181

Closes gh-4180

Closes gh-4179

Closes gh-4178

Closes gh-4177

Closes gh-4176

Closes gh-4174
Closes gh-4175

Closes gh-4173

Closes gh-4172

The Java 6 module has been dropped in 2.4. Dependency management for
HikariCP-java6 is retained at the latest available version; 2.3.9.

Closes gh-4171

Closes gh-4169