Upgrade to Java 8.
Upgrade to Spring Boot 1.1.1.RELEASE and Spring Data snapshots.
Upgraded dependencies.

Spring Boot 1.1.1.RELEASE -> 1.1.4.RELEASE.
Spring HATEOAS 0.14.0.BUILD-SNAPSHOT -> 0.15.0.BUILD-SNAPSHOT
Tomcat 8.0.8 -> 8.0.9
Lombok 1.12.4 -> 1.14.4