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

pom.xml

@@ -20,7 +20,7 @@
 
   <groupId>de.tudarmstadt.ukp.dkpro.core</groupId>
   <artifactId>build-resources</artifactId>
-  <version>3</version>
+  <version>4-SNAPSHOT</version>
   <description>Build resources for DKPro projects. Templates for NOTICE.txt and friends to be installed using the maven-remote-resources-plugin.</description>
   <name>DKPro Build Resources</name>
   <url>https://github.com/dkpro/dkpro-build-resources</url>
@@ -30,7 +30,7 @@
     <connection>scm:git:https://github.com/dkpro/dkpro-build-resources.git</connection>
     <developerConnection>scm:git:https://github.com/dkpro/dkpro-build-resources.git</developerConnection>
     <url>https://github.com/dkpro/dkpro-build-resources</url>
-    <tag>build-resources-3</tag>
+    <tag>HEAD</tag>
   </scm>
 
   <developers>