made address object serializable, closes #792

openid-connect-common/src/main/java/org/mitre/openid/connect/model/Address.java

@@ -16,6 +16,8 @@
  *******************************************************************************/
 package org.mitre.openid.connect.model;
 
+import java.io.Serializable;
+
 import javax.persistence.Basic;
 import javax.persistence.Column;
 import javax.persistence.Entity;
@@ -26,8 +28,9 @@ import javax.persistence.Table;
 
 @Entity
 @Table(name="address")
-public class Address {
+public class Address implements Serializable {
 
+	private static final long serialVersionUID = -1304880008685206811L;
 
 	private Long id;
 	private String formatted;