Replaced deprecated @Builder annotation with @Builder from the main lombok package. Remove Groovy libraries as Examples do not contain scripting.
Original pull request: #165.
Removed all previous references to snpahosts. Removed explicit version declaration of Lombok as Boot sets that for us in 1.4.
Upgraded Elasticsearch dependency to 2.2 and uncommented the actual sample module as it needs to be updated due to API changes in Elasticsearch and Spring Data Elasticsearch in turn.
Adapt to API changes in entity lookup configuration for Spring Data REST.
Tweaked Neo4j build setup by using the dedicated embedded driver JAR.
