[maven-release-plugin] prepare for next development iteration

Change-Id: I9162dcf30c700a84d8020e61edb5430fb178eb07
diff --git a/pom.xml b/pom.xml
index 70f8bde..78e7af0 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
 
     <groupId>de.ids-mannheim.korap.tokenizer</groupId>
     <artifactId>KorAP-Tokenizer</artifactId>
-    <version>2.2.4</version>
+    <version>2.2.5-SNAPSHOT</version>
 
     <name>KorAP-Tokenizer</name>
     <description>DFA tokenizer with character offset output, large abbreviation tables and CMC support.</description>
@@ -32,7 +32,7 @@
     <scm>
         <connection>scm:git:https://korap.ids-mannheim.de/gerrit/KorAP/KorAP-Tokenizer</connection>
         <developerConnection>scm:git:ssh://kupietz@korap.ids-mannheim.de:29418/KorAP/KorAP-Tokenizer</developerConnection>
-        <tag>KorAP-Tokenizer-2.2.4</tag>
+        <tag>HEAD</tag>
     </scm>
 
     <licenses>