Merge config from custom locations with default configuration

Previously, when one or more custom locations were specified on
@ConfigurationProperties, the configuration loaded from those locations
was used in isolation from the default configuration provided by the
environment. Users have been surprised by this behaviour. For example,
it means that a placeholder used in the custom configuration will not
be resolved against the system properties.

This commit adds a new attribute, merge, to @ConfigurationProperties,
that defaults to true. When merge is true the default property sources
are appended to those that are loaded from the custom locations. When
set to false the custom configuration is used in isolation.

Closes #1301
Update test to correct name of metric for request that returns a 401

The request is being made to '/' and, while the application does have
a mapping for '/', that mapping is not looked for before Spring
Security's filter rejects the request with a 401. This means that the
request is considered to be unmapped and this is reflected in the
metric's name.

See #1331 and #1333
Merge branch '1.1.x'
Never run data.sql scripts if spring.datasource.initialize is false

Previously, the data scripts were always run in response to the
publication of a DataSourceInitializedEvent, irrespective of
spring.datasource.initialize. While the event won't be published by
DataSourceInitializer if spring.datasource.initialize is false, it
will be published if spring.jpa.hibernate.hbm2ddl.auto has been set.

This commit updates DataSourceInitializer's handling of
DataSourceInitializedEvent to only run the data scripts if
spring.datasource.initialize is true.

Fixes #1336
Merge branch '1.1.x'
Polish
Document @ConfigurationProperties on @Bean methods

Minor javadoc edits to hint that @ConfigurationProperties can also be
used with @Bean methods.

Fixes gh-1330
Add option to disable `X-Application-Context`

Add `management.add-application-context-header` option to disable
the automatic adding of the `X-Application-Context` HTTP header.

Fixes gh-1308
Merge branch '1.1.x'
Use MongoDbFactory to create GridFsTemplate

Update MongoDataAutoConfiguration to use the MongoDbFactory when
creating GridFsTemplate.

Fixes gh-1295
Merge branch '1.1.x'
Use ApplicationEvent to ensure that authentication event publisher is registered

There was a reference to an old (fixed) issue in Spring which led to some simplification
of the AuthenticationManager layering as well.

Fixes gh-1335
Merge branch '1.1.x'
Add JCache API dependency management

The dependency is currently declared in Spring IO Platform from where
it can be removed once it's using a version of Boot that contains
this change. To make the migration of the dependency management from
the Platform to Boot seamless, the dependency is versioned using a
property with the same name as is currently used by the Platform:
javax-cache.version

Closes #1347
Move repositories out of parent POM

Move repository declarations out of the parent POM and into setting.xml
(except for the default profile). Also added jboss repository in an
attempt to fix the failing CI release.

Fixed gh-1349
Attempt to fix failing build
Next development version
Merge branch '1.1.x'
Fixup version numbers following release
Merge branch '1.1.x'

Conflicts:
	pom.xml
	spring-boot-actuator/pom.xml
	spring-boot-autoconfigure/pom.xml
	spring-boot-cli/pom.xml
	spring-boot-dependencies/pom.xml
	spring-boot-docs/pom.xml
	spring-boot-full-build/pom.xml
	spring-boot-integration-tests/pom.xml
	spring-boot-parent/pom.xml
	spring-boot-samples/pom.xml
	spring-boot-samples/spring-boot-sample-actuator-log4j/pom.xml
	spring-boot-samples/spring-boot-sample-actuator-noweb/pom.xml
	spring-boot-samples/spring-boot-sample-actuator-ui/pom.xml
	spring-boot-samples/spring-boot-sample-actuator/pom.xml
	spring-boot-samples/spring-boot-sample-amqp/pom.xml
	spring-boot-samples/spring-boot-sample-aop/pom.xml
	spring-boot-samples/spring-boot-sample-batch/pom.xml
	spring-boot-samples/spring-boot-sample-data-elasticsearch/pom.xml
	spring-boot-samples/spring-boot-sample-data-gemfire/pom.xml
	spring-boot-samples/spring-boot-sample-data-jpa/pom.xml
	spring-boot-samples/spring-boot-sample-data-mongodb/pom.xml
	spring-boot-samples/spring-boot-sample-data-redis/pom.xml
	spring-boot-samples/spring-boot-sample-data-rest/pom.xml
	spring-boot-samples/spring-boot-sample-data-solr/pom.xml
	spring-boot-samples/spring-boot-sample-flyway/pom.xml
	spring-boot-samples/spring-boot-sample-hornetq/pom.xml
	spring-boot-samples/spring-boot-sample-integration/pom.xml
	spring-boot-samples/spring-boot-sample-jetty/pom.xml
	spring-boot-samples/spring-boot-sample-liquibase/pom.xml
	spring-boot-samples/spring-boot-sample-parent-context/pom.xml
	spring-boot-samples/spring-boot-sample-profile/pom.xml
	spring-boot-samples/spring-boot-sample-secure/pom.xml
	spring-boot-samples/spring-boot-sample-servlet/pom.xml
	spring-boot-samples/spring-boot-sample-simple/pom.xml
	spring-boot-samples/spring-boot-sample-tomcat-multi-connectors/pom.xml
	spring-boot-samples/spring-boot-sample-tomcat/pom.xml
	spring-boot-samples/spring-boot-sample-tomcat8-jsp/pom.xml
	spring-boot-samples/spring-boot-sample-traditional/pom.xml
	spring-boot-samples/spring-boot-sample-web-freemarker/pom.xml
	spring-boot-samples/spring-boot-sample-web-groovy-templates/pom.xml
	spring-boot-samples/spring-boot-sample-web-jsp/pom.xml
	spring-boot-samples/spring-boot-sample-web-method-security/pom.xml
	spring-boot-samples/spring-boot-sample-web-secure/pom.xml
	spring-boot-samples/spring-boot-sample-web-static/pom.xml
	spring-boot-samples/spring-boot-sample-web-ui/pom.xml
	spring-boot-samples/spring-boot-sample-web-velocity/pom.xml
	spring-boot-samples/spring-boot-sample-websocket/pom.xml
	spring-boot-samples/spring-boot-sample-ws/pom.xml
	spring-boot-samples/spring-boot-sample-xml/pom.xml
	spring-boot-starters/pom.xml
	spring-boot-starters/spring-boot-starter-actuator/pom.xml
	spring-boot-starters/spring-boot-starter-amqp/pom.xml
	spring-boot-starters/spring-boot-starter-aop/pom.xml
	spring-boot-starters/spring-boot-starter-batch/pom.xml
	spring-boot-starters/spring-boot-starter-data-elasticsearch/pom.xml
	spring-boot-starters/spring-boot-starter-data-gemfire/pom.xml
	spring-boot-starters/spring-boot-starter-data-jpa/pom.xml
	spring-boot-starters/spring-boot-starter-data-mongodb/pom.xml
	spring-boot-starters/spring-boot-starter-data-rest/pom.xml
	spring-boot-starters/spring-boot-starter-data-solr/pom.xml
	spring-boot-starters/spring-boot-starter-freemarker/pom.xml
	spring-boot-starters/spring-boot-starter-groovy-templates/pom.xml
	spring-boot-starters/spring-boot-starter-hornetq/pom.xml
	spring-boot-starters/spring-boot-starter-integration/pom.xml
	spring-boot-starters/spring-boot-starter-jdbc/pom.xml
	spring-boot-starters/spring-boot-starter-jetty/pom.xml
	spring-boot-starters/spring-boot-starter-log4j/pom.xml
	spring-boot-starters/spring-boot-starter-logging/pom.xml
	spring-boot-starters/spring-boot-starter-mobile/pom.xml
	spring-boot-starters/spring-boot-starter-parent/pom.xml
	spring-boot-starters/spring-boot-starter-redis/pom.xml
	spring-boot-starters/spring-boot-starter-remote-shell/pom.xml
	spring-boot-starters/spring-boot-starter-security/pom.xml
	spring-boot-starters/spring-boot-starter-social-facebook/pom.xml
	spring-boot-starters/spring-boot-starter-social-linkedin/pom.xml
	spring-boot-starters/spring-boot-starter-social-twitter/pom.xml
	spring-boot-starters/spring-boot-starter-test/pom.xml
	spring-boot-starters/spring-boot-starter-thymeleaf/pom.xml
	spring-boot-starters/spring-boot-starter-tomcat/pom.xml
	spring-boot-starters/spring-boot-starter-velocity/pom.xml
	spring-boot-starters/spring-boot-starter-web/pom.xml
	spring-boot-starters/spring-boot-starter-websocket/pom.xml
	spring-boot-starters/spring-boot-starter-ws/pom.xml
	spring-boot-starters/spring-boot-starter/pom.xml
	spring-boot-tools/pom.xml
	spring-boot-tools/spring-boot-dependency-tools/pom.xml
	spring-boot-tools/spring-boot-gradle-plugin/pom.xml
	spring-boot-tools/spring-boot-loader-tools/pom.xml
	spring-boot-tools/spring-boot-loader/pom.xml
	spring-boot-tools/spring-boot-maven-plugin/pom.xml
	spring-boot-versions/pom.xml
	spring-boot/pom.xml