Pull version to 2.11.9

Prepare for a new binary release including python-3 support

jplag/pom.xml

@@ -2,7 +2,7 @@
 	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>jplag</artifactId>
-	<version>2.11.8-SNAPSHOT</version>
+	<version>2.11.9-SNAPSHOT</version>
 
 	<parent>
 		<groupId>edu.kit.ipd.jplag</groupId>