Added check for errors on QuerySerializer

Change-Id: Ie3dc8ebfe4e40076ce3c7e8808eb38f300b98f5e
diff --git a/pom.xml b/pom.xml
index 7087576..7cffd74 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
 
 	<groupId>de.ids_mannheim.korap</groupId>
 	<artifactId>Koral</artifactId>
-	<version>0.28</version>
+	<version>0.29</version>
 	<packaging>jar</packaging>
 	<name>Koral</name>
 	<url>http://maven.apache.org</url>