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

Author: patrick-austin

pom.xml

@@ -5,7 +5,7 @@
 	<groupId>org.icatproject</groupId>
 	<artifactId>datagateway-download-api</artifactId>
 	<packaging>war</packaging>
-	<version>3.1.0</version>
+	<version>3.1.1-SNAPSHOT</version>
 	<name>DataGateway Download API</name>
 	<description>Download backend for DataGateway</description>
 
@@ -287,7 +287,7 @@
 		<connection>scm:git:https://github.com/ral-facilities/datagateway-download-api.git</connection>
 		<developerConnection>scm:git:https://github.com/ral-facilities/datagateway-download-api.git</developerConnection>
 		<url>https://github.com/ral-facilities/datagateway-download-api</url>
-		<tag>v3.1.0</tag>
+		<tag>HEAD</tag>
 	</scm>