Update pom.xml

Re-added commons-lang dependency

Author: mtransier

pom.xml

@@ -117,6 +117,11 @@
             <artifactId>commons-beanutils</artifactId>
             <version>1.9.4</version>
         </dependency>
+        <dependency>
+            <groupId>commons-lang</groupId>
+            <artifactId>commons-lang</artifactId>
+            <version>2.6</version>
+        </dependency>
         <dependency>
             <groupId>org.mule.connectors</groupId>
             <artifactId>mule-jms-connector</artifactId>