Apache Sling Scripting Reloaded

The Whiteboard modules have been moved to:

1. https://github.com/apache/sling-org-apache-sling-scripting-bundle-tracker
2. https://github.com/apache/sling-org-apache-sling-scripting-bundle-tracker-it
3. https://github.com/apache/sling-scriptingbundle-maven-plugin