Rename KryoPool -> KryoNamespace

Change-Id: Ife1c311b40eaab133bb3b8dd3314b98c60b4411d
diff --git a/core/store/serializers/src/main/java/org/onlab/onos/store/serializers/ImmutableMapSerializer.java b/core/store/serializers/src/main/java/org/onlab/onos/store/serializers/ImmutableMapSerializer.java
index 734033f..cfa7ccc 100644
--- a/core/store/serializers/src/main/java/org/onlab/onos/store/serializers/ImmutableMapSerializer.java
+++ b/core/store/serializers/src/main/java/org/onlab/onos/store/serializers/ImmutableMapSerializer.java
@@ -4,7 +4,7 @@
 import java.util.HashMap;
 import java.util.Map;
 
-import org.onlab.util.KryoPool.FamilySerializer;
+import org.onlab.util.KryoNamespace.FamilySerializer;
 
 import com.esotericsoftware.kryo.Kryo;
 import com.esotericsoftware.kryo.io.Input;