Fixes gh-2088

Add `application.formatted-version` and `spring-boot.formatted-version`
properties for use in banner.txt files. The `application.version` and
`spring-boot.version` properties now return a simple version number
without any formatting.

Fixes gh-2090

Assume that Undertow uses -1 for "no expiry".

See gh-2084

Conflicts:
	spring-boot/src/main/java/org/springframework/boot/context/embedded/jetty/JettyEmbeddedServletContainerFactory.java

Update AbstractConfigurableEmbeddedServletContainer to set the default
session timeout to 30 minutes. Also correct Javadoc to specify that
the default is '30 minutes'.

Fixes gh-2084

Add a tip for both the Maven and Gradle "Packaging executable jar and
war files" section referring to the how-to.

Fixes gh-2086

See gh-2080

Revert commit 3ad43e0d to give us
a little more time to consider how this will impact tooling.

Partly back port changes from affb202e and 85c95744 to fix the usage
of JMS in the CLI. Restore the integration test using HornetQ and fix the
coordinates of the JMS API.

Fixes gh-2075

Fixes gh-2078

Ensure that a sensible exception message is thrown if the user happens
to include the logback jar in their deployment.

Fixes gh-2077

Undertow 1.1 expects that DeploymentInfo.contextPath is set to "/" for
a root context. If it is left as "" the session cookie path is not
correctly set. See UNDERTOW-350 for background.

This commit simplifies the original work-around committed in 78c22813.

Fixes gh-2065

See gh-1736

Fixes gh-1736

Add deployment tests for Tomcat, TomEE and WildFly to ensure that
a basic Spring Boot application can be deployed to a traditional
Application server.

Since the deployment tests can be quite slow, they currently only
run in the "full" build profile.

Fixes gh-1736

Update SpringBootServletInitializer to automatically add itself as a
SpringApplication source if it is annotated with @Configuration.

Also throw a more meaningful exception if no sources have been
configured.

Fixes gh-2073

Update JndiConnectionFactoryAutoConfiguration to ensure that the
JmsProperties bean is created. Prior to this commit deployment to
a WildFly would fail with a NoSuchBeanDefinitionException.

Fixes gh-2072

Fixes gh-1750

Closes gh-2061

Closes gh-2062

Conflicts:
	spring-boot/src/main/java/org/springframework/boot/logging/LoggingApplicationListener.java

Extract some of the common property keys as constants.

Fixes gh-2068

Replace `classpath:db/migrations` with `classpath:db/migrations`.

Fixes gh-2063

Explicitly set a ServletSessionConfig when the context path is "". This
is a workaround for UNDERTOW-350 to ensure that the session cookie path
is correctly set.

Fixes gh-2065

Fixes gh-2066

Previously, specifying a simple target name for a regular project would
store the (zip) archive in a file matching the target name. Only adding a
slash at the end of the name allows to extract it as a directory. It
turns out that such convention is not easy to catch and if a simple name
is provided on the command-line, the user probably wants to create a
directory with such a name with the content of the project.

Note that if a build file is required and the name does not have any
extension, we still store a file with the required name as auto-detecting
the extension to use is not that easy.

Fixes gh-2056