Merge pull request #33 from masaruh/2.2.1_upgrade

Upgrade to Elasticsearch 2.2.1

Author: masaruh

pom.xml

@@ -12,10 +12,10 @@
     <packaging>jar</packaging>
 
     <properties>
-        <elasticsearch.version>2.2.0</elasticsearch.version>
+        <elasticsearch.version>2.2.1</elasticsearch.version>
         <lucene.version>5.4.1</lucene.version>
         <jackson.version>2.6.2</jackson.version>
-        <testframework.version>2.2.0</testframework.version>
+        <testframework.version>2.3.1</testframework.version>
         <maven.compiler.source>1.7</maven.compiler.source>
         <maven.compiler.target>1.7</maven.compiler.target>
     </properties>