Update sample applications to correctly refer to parent relativePath.

Various updates to README.md files.

Include LICENCE and INSTALL text files and ensure that .bat file is
not set with executable Unix file permissions.

 - Update pom.xml to be valid
 - Change to use milestone repository instead of snapshot
 - Add file name for SampleController.java
 - Correct EnableAutoConfiguration import
 - Add missing ;

# By Daniel Ling
# Via Daniel Ling
* pull10:
  Fix code typos in README

Refactor GrapeEngineCustomizer to improve ivy resolution times by
failing early when resolution is known to fail.

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.