This reverts commit e99d2199.

The main spring-boot project should not have compile scope dependencies
to any org.slf4j artifacts.

Inherit default profile activation for spring-snapshot-build in the
spring-boot-starter-parent from the spring-boot-parent.

Allow sample projects to work correctly in eclipse.

Update CLI to show a "Downloading Dependencies..." message if the
initial dependency resolution takes more than 3 seconds. Whilst
downloading dots are appended to the message.

Issue: #54589094

Fixed a few issues with the spring start script, mainly around symlinks.
Test on OSX, Ubuntu and Windows (Cygwin) with and would symlinks.

# By Oliver Gierke
* pull9:
  Cleanups Spring Data JPA example.

Various cleanups to the Spring Data JPA example, including:

* Move repositories into service package and make them package private
  thus only expose the service interfaces to clients.
* Merge HotelRepository and HotelSummaryRepository and make service
  implementations package protected.
* Introduce integration test base class to bootstrap the app as
  SpringAppliation.run would.
* Refactor central test case to rather use Spring MVC integration
  testing framework.
* Add integration tests for repositories to execute query methods.

Rework main build POM to be an aggregator pom that does not inherit
from any parent. Introduce new spring-boot-dependencies module to
act as a parent for both spring-boot-starter-parent and
spring-boot-parent.

Update ConfigFileApplicationContextInitializer so that the names
property defaults to `${spring.config.name},application`. This allows
application.properties files to be loaded even when property placeholder
expansion is not enabled.

Issue: #54462910