Merge pull request #4 from jhartlaub/master-csd

REL-257 Update to allow non-global specification off TTL's for cleaning.

Author: markhamstra

core/src/main/scala/org/apache/spark/util/MetadataCleaner.scala

@@ -27,7 +27,7 @@ import org.apache.spark.Logging
 class MetadataCleaner(cleanerType: MetadataCleanerType.MetadataCleanerType, cleanupFunc: (Long) => Unit) extends Logging {
   val name = cleanerType.toString
 
-  private val delaySeconds = MetadataCleaner.getDelaySeconds
+  private val delaySeconds = MetadataCleaner.getDelaySeconds(cleanerType)
   private val periodSeconds = math.max(10, delaySeconds / 10)
   private val timer = new Timer(name + " cleanup timer", true)