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

pom.xml

@@ -3,7 +3,7 @@
         
     <groupId>de.cebitec.common</groupId>
     <artifactId>dbxref</artifactId>
-    <version>1.2.0</version>
+    <version>1.3.0-SNAPSHOT</version>
     <packaging>bundle</packaging>
 
     <name>DbXRef library</name>
@@ -20,7 +20,7 @@
     
     <scm>
         <developerConnection>scm:git:https://git.computational.bio.uni-giessen.de/gendb3/lib-dbxref.git</developerConnection>
-      <tag>dbxref-1.2.0</tag>
+      <tag>HEAD</tag>
   </scm>
     
     <properties>