Reduce size of jenkins logs

Each build is now over 40mb logs.

A lot of DEBUG logging was left on for test failures that have been
fixed. Added an issue # for ones that are still valid or if if it on
as the test verifies debug

akka-distributed-data/src/multi-jvm/scala/akka/cluster/ddata/DurableDataSpec.scala

@@ -23,7 +23,6 @@ final case class DurableDataSpecConfig(writeBehind: Boolean) extends MultiNodeCo
   val second = role("second")
 
   commonConfig(ConfigFactory.parseString(s"""
-    akka.loglevel = DEBUG
     akka.actor.provider = "akka.cluster.ClusterActorRefProvider"
     akka.log-dead-letters-during-shutdown = off
     akka.cluster.distributed-data.durable.keys = ["durable*"]