meta query builder plus test

Change-Id: Ib67c637ec6564f3be0fe7148cb63dc0b31fd1fd0
diff --git a/pom.xml b/pom.xml
index 042468d..2f9e9d5 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
   <groupId>de.ids_mannheim.korap</groupId>
   <artifactId>Koral</artifactId>
-  <version>0.2</version>
+  <version>0.21</version>
   <packaging>jar</packaging>
   <name>Koral</name>
   <url>http://maven.apache.org</url>