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.