Changed @since 2.1 to @since 2.2 since these files did not make it into 2.1.

git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/lang/trunk@201661 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/commons/lang/text/Interpolation.java

@@ -11,7 +11,7 @@
  *
  * @author Ken Fitzpatrick
  * @author Henri Yandell
- * @since 2.1
+ * @since 2.2
  * @version $Id$
  */
 public class Interpolation {

src/java/org/apache/commons/lang/text/MappedMessageFormat.java

@@ -40,7 +40,8 @@
  * Originally org.apache.commons.digester.substitution.MultiVariableExpander.
  * </p>
  *
- * @since 2.1
+ * @since 2.2
+ * @version $Id$
  */
 public class MappedMessageFormat {
 

src/java/org/apache/commons/lang/text/StrBuilder.java

@@ -49,7 +49,7 @@
  * 'null'. This can be controlled by a property, {@link #setNullText(String)}.
  *
  * @author Stephen Colebourne
- * @since 2.1
+ * @since 2.2
  * @version $Id$
  */
 public class StrBuilder implements Cloneable {

src/java/org/apache/commons/lang/text/StrTokenizer.java

@@ -72,7 +72,7 @@
  * @author Matthew Inger
  * @author Stephen Colebourne
  * @author Gary D. Gregory
- * @since 2.1
+ * @since 2.2
  * @version $Id$
  */
 public class StrTokenizer implements ListIterator, Cloneable {