Added unit test for Match and UpdateResult + Javadoc fixes

Change-Id: I8dae6c9568d33d580d60a72fdcc1be45b7308727
diff --git a/core/api/src/main/java/org/onosproject/store/service/Serializer.java b/core/api/src/main/java/org/onosproject/store/service/Serializer.java
index a3e2b0c..6245175 100644
--- a/core/api/src/main/java/org/onosproject/store/service/Serializer.java
+++ b/core/api/src/main/java/org/onosproject/store/service/Serializer.java
@@ -24,7 +24,7 @@
 import com.google.common.collect.Lists;
 
 /**
- * Interface for serialization for store artifacts.
+ * Interface for serialization of store artifacts.
  */
 public interface Serializer {
     /**