migrate to latest service-lib and scala-sbt-parent
migrate to new service registration API
ZkGroupApiImpl renamed to ZkGroupApi
change version storage according to sbt-release
change all test to sequential (to avoid name clashing)
proper future matcher is used
id-based naming, to avoid clashes (we do not want to remove ephemeral nodes ourselves)
java test is removed (before tests were ignored)
Setting version to 0.2.1
Setting version to 0.2.2-SNAPSHOT