0.9.0 / 2020-05-11

[CHANGE/ENHANCEMENT] Bump caffeine dependency to 2.7.0 to support AsyncCache (#549)
[ENHANCEMENT] Added health check api to simpleclient_httpserver. (#534)
[ENHANCEMENT] Remove dependency on sun.misc.Unsafe, allowing building on JDK11 (#547)
[ENCHAGEMENT] Wrap PrintWriter with BufferedWriter, making servlet exposition about 2x faster (#540)