expose the Mongo Options via get method.

Author: Ryan

src/main/com/mongodb/Mongo.java

@@ -512,6 +512,13 @@ void _applyMongoOptions() {
         setWriteConcern( _options.getWriteConcern() );
     }
 
+    /**
+     * Returns the mongo options.
+     */
+    public MongoOptions getMongoOptions() {
+        return _options;
+    }
+
     /**
      * Gets the maximum size for a BSON object supported by the current master server.
      * Note that this value may change over time depending on which server is master.