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

pom.xml

@@ -1,7 +1,7 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>vectorz-clj</artifactId>
-	<version>0.39.0</version>
+	<version>0.39.1-SNAPSHOT</version>
 	<description>Fast matrix and vector maths library for Clojure - as a pure JVM core.matrix implementation </description>
 
 	<licenses>
@@ -23,7 +23,7 @@
 		<connection>scm:git:git@github.com:mikera/${project.artifactId}.git</connection>
 		<url>scm:git:git@github.com:mikera/${project.artifactId}.git</url>
 		<developerConnection>scm:git:git@github.com:mikera/${project.artifactId}.git</developerConnection>
-		<tag>vectorz-clj-0.39.0</tag>
+		<tag>HEAD</tag>
 	</scm>
 
 	<parent>