[maven-release-plugin] prepare release 0.3.1
diff --git a/pom.xml b/pom.xml
index 7f91eab..5ec1b1e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -11,7 +11,7 @@
     </prerequisites>
     <groupId>uk.org.taverna.databundle</groupId>
     <artifactId>databundle</artifactId>
-    <version>0.3.1-SNAPSHOT</version>
+    <version>0.3.1</version>
     <name>Databundle API</name>
     <description>API for dealing with Data Bundles</description>
     <properties>
@@ -103,7 +103,7 @@
 		<connection>scm:git:git://github.com/myGrid/databundle.git</connection>
 		<developerConnection>scm:git:ssh://git@github.com/myGrid/databundle.git</developerConnection>
 		<url>https://github.com/myGrid/databundle/</url>
-      <tag>HEAD</tag>
+      <tag>0.3.1</tag>
   </scm>
     <licenses>
         <license>