Support signed match identifiers

Change-Id: Ib0fe20bcad0b3f6984bad0db1da326600956685a
diff --git a/pom.xml b/pom.xml
index be572a1..8709c17 100644
--- a/pom.xml
+++ b/pom.xml
@@ -35,7 +35,7 @@
 
   <groupId>de.ids-mannheim.korap.krill</groupId>
   <artifactId>Krill</artifactId>
-  <version>0.63.3</version>
+  <version>0.64.0</version>
   <packaging>jar</packaging>
 
   <name>Krill</name>