Creating umbrella for all of the "upgrade ____ to modern version" tickets, with 4.0 coming up, seems like a good time.
Upgrade metrics to 3.1.5
Upgrade some dependencies.
update arline dependecy to 0.7
update slf4j dependency to 1.7.21
Upgrade the jna version to 4.3.0
Upgrade the snappy-java version to 1.1.2.x
Replace Cassandra's lz4-1.3.0.jar with lz4-java-1.4.0.jar
Upgrade junit from 4.6 to 4.12
Upgrade C* to use latest guava (27.0)
Remove joda time from dependencies
Upgrade Guava to 23.3 and Airline to 0.8