Bumped up ant and commons-io to latest versions

git-svn-id: https://svn.apache.org/repos/asf/directory/shared/trunk@1334162 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index c89bcf3..0740311 100644
--- a/pom.xml
+++ b/pom.xml
@@ -43,7 +43,7 @@
     <!-- Set versions for depending jars -->
     <antlr.version>2.7.7</antlr.version>
     <commons.collections.version>3.2.1</commons.collections.version>
-    <commons.io.version>2.1</commons.io.version>
+    <commons.io.version>2.3</commons.io.version>
     <commons.lang.version>2.6</commons.lang.version>
     <commons.pool.version>1.6</commons.pool.version>
     <dom4j.version>1.6.1</dom4j.version>