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-actor-tests/src/test/scala/akka/event/LoggerSpec.scala

@@ -27,7 +27,7 @@ object LoggerSpec {
   val defaultConfig = ConfigFactory.parseString("""
       akka {
         stdout-loglevel = "WARNING"
-        loglevel = "DEBUG"
+        loglevel = "DEBUG" # test verifies debug
         loggers = ["akka.event.LoggerSpec$TestLogger1"]
       }
     """).withFallback(AkkaSpec.testConf)
@@ -59,7 +59,7 @@ object LoggerSpec {
   val ticket3165Config = ConfigFactory.parseString(s"""
       akka {
         stdout-loglevel = "WARNING"
-        loglevel = "DEBUG"
+        loglevel = "DEBUG" # test verifies debug
         loggers = ["akka.event.LoggerSpec$$TestLogger1"]
         actor {
           serialize-messages = on

akka-actor-tests/src/test/scala/akka/event/LoggingReceiveSpec.scala

@@ -27,7 +27,7 @@ class LoggingReceiveSpec extends WordSpec with BeforeAndAfterAll {
 
   import LoggingReceiveSpec._
   val config = ConfigFactory.parseString("""
-    akka.loglevel=DEBUG
+    akka.loglevel=DEBUG # test verifies debug
     akka.actor.serialize-messages = off # debug noise from serialization
     """).withFallback(AkkaSpec.testConf)
   val appLogging = ActorSystem("logging", ConfigFactory.parseMap(Map("akka.actor.debug.receive" → true).asJava).withFallback(config))