moving out OptionalCacheLoader

Change-Id: If929ed119df1a0282e311188a00776e971f78991
diff --git a/core/store/src/main/java/org/onlab/onos/store/cluster/impl/package-info.java b/core/store/src/main/java/org/onlab/onos/store/cluster/impl/package-info.java
index fe3df5d..9f36b88 100644
--- a/core/store/src/main/java/org/onlab/onos/store/cluster/impl/package-info.java
+++ b/core/store/src/main/java/org/onlab/onos/store/cluster/impl/package-info.java
@@ -1,4 +1,4 @@
 /**
  * Implementation of a distributed cluster node store using Hazelcast.
  */
-package org.onlab.onos.store.cluster.impl;
\ No newline at end of file
+package org.onlab.onos.store.cluster.impl;