Merge pull request #89 from tarnfeld/update-hadoop-version-2.3.0

Switched pom.xml to hadoop 2.4.0

Author: sjlee

pom.xml

@@ -88,7 +88,7 @@
 
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <hadoop.current.version>2.1.0-beta</hadoop.current.version>
+    <hadoop.current.version>2.4.0</hadoop.current.version>
     <hadoop.old.version>1.0.4</hadoop.old.version>
   </properties>