Redesign relations in snippets to be xlink conformant

Change-Id: I6aea77c632bfa3b0acbc079eb58639ae197104b1
diff --git a/pom.xml b/pom.xml
index d7d361d..78279d8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -35,7 +35,7 @@
 
 	<groupId>de.ids_mannheim.korap</groupId>
 	<artifactId>Krill</artifactId>
-	<version>0.55.9</version>
+	<version>0.56.1</version>
 	<packaging>jar</packaging>
 
 	<name>Krill</name>