fix version conflict in pom

for commons-io

pom.xml

@@ -333,6 +333,11 @@
             <artifactId>commons-fileupload</artifactId>
             <version>1.3.1</version>
         </dependency>
+        <dependency>
+            <groupId>commons-io</groupId>
+            <artifactId>commons-io</artifactId>
+            <version>2.3</version>
+        </dependency>        
         <dependency>
             <groupId>commons-jxpath</groupId>
             <artifactId>commons-jxpath</artifactId>