Enable checkstyle Javadoc Comment Style rule

Turn on the Javadoc Comment Style rule and fix
any violations that come up.  This is related to
requiring javadoc description comments to end
with a '.'

Change-Id: I19cf1b9f00d3040987e0b4c8b39461e2e0ad66b5
diff --git a/src/main/java/net/onrc/onos/core/datastore/IKVTable.java b/src/main/java/net/onrc/onos/core/datastore/IKVTable.java
index 95e0027..87fee25 100644
--- a/src/main/java/net/onrc/onos/core/datastore/IKVTable.java
+++ b/src/main/java/net/onrc/onos/core/datastore/IKVTable.java
@@ -2,7 +2,7 @@
 
 
 /**
- * Interface for a class to represent a Table in a Key-Value store
+ * Interface for a class to represent a Table in a Key-Value store.
  */
 public interface IKVTable {
 
@@ -83,7 +83,7 @@
             throws ObjectDoesntExistException;
 
     /**
-     * Remove an existing Key-Value entry in table
+     * Remove an existing Key-Value entry in table.
      *
      * @param key
      * @param version expected version in the data store
@@ -95,7 +95,7 @@
             throws ObjectDoesntExistException, WrongVersionException;
 
     /**
-     * Remove a Key-Value entry in table
+     * Remove a Key-Value entry in table.
      *
      * @param key
      * @return version of removed object or VERSION_NONEXISTENT, if it did not exist.