Misc improvements. Primarily Javadoc.

Change-Id: I083bbf559d53fa25f79d4e1e53eb15c6b96290f2
diff --git a/core/api/src/main/java/org/onosproject/store/service/MapEventListener.java b/core/api/src/main/java/org/onosproject/store/service/MapEventListener.java
index 0b36b68..359f465 100644
--- a/core/api/src/main/java/org/onosproject/store/service/MapEventListener.java
+++ b/core/api/src/main/java/org/onosproject/store/service/MapEventListener.java
@@ -16,7 +16,7 @@
 package org.onosproject.store.service;
 
 /**
- * Listener to be notified about updates to a ConsitentMap.
+ * Listener to be notified about updates to a ConsistentMap.
  */
 public interface MapEventListener<K, V> {
     /**