We now use StepVerifier and RxJava's .test() methods instead of .block() calls. Using blocking methods is an anti pattern which should be avoided within tests. Test API comes with timeouts and protects tests from never completing.
Upgraded to Boot 1.5.6. Updated dependencies of reactive projects to latest versions to make sure the APIs of Boot work with the changes in Spring Data Kay RC1. Upgraded all other dependencies to match and got both the Redis and the Cassandra examples to compile again.
Disabled Cassandra reactive samples for now as they fail at runtime.
