[maven-release-plugin] prepare release v0.4.0

pom.xml

@@ -4,7 +4,7 @@
 
     <groupId>org.orbisgis</groupId>
     <artifactId>java-network-analyzer</artifactId>
-    <version>0.4.0-SNAPSHOT</version>
+    <version>0.4.0</version>
     <packaging>bundle</packaging>
 
     <!-- More Project Information -->
@@ -40,7 +40,7 @@
         <connection>scm:git:https://github.com/orbisgis/java-network-analyzer.git</connection>
         <developerConnection>scm:git:https://github.com/orbisgis/java-network-analyzer.git</developerConnection>
         <url>[email protected]:orbisgis/java-network-analyzer.git</url>
-        <tag>HEAD</tag>
+        <tag>v0.4.0</tag>
     </scm>
 
     <issueManagement>