HADOOP-15261. Upgrade commons-io from 2.4 to 2.5. Contributed by PandaMonkey.

hadoop-project/pom.xml

@@ -784,7 +784,7 @@
       <dependency>
         <groupId>commons-io</groupId>
         <artifactId>commons-io</artifactId>
-        <version>2.4</version>
+        <version>2.5</version>
       </dependency>
 
       <dependency>