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

pom.xml

@@ -8,7 +8,7 @@
 
   <groupId>jp.ikedam.jenkins.plugins</groupId>
   <artifactId>extensible-choice-parameter</artifactId>
-  <version>1.4.0</version>
+  <version>1.4.1-SNAPSHOT</version>
   <packaging>hpi</packaging>
   <name>Extensible Choice Parameter plugin</name>
   <description>Jenkins plugin to define choice build parameters where the way to provide choices can be extended.</description>
@@ -18,7 +18,7 @@
   <scm>
     <connection>scm:git:git://github.com/jenkinsci/${project.artifactId}-plugin.git</connection>
     <developerConnection>scm:git:git@github.com:jenkinsci/${project.artifactId}-plugin.git</developerConnection>    <url>https://github.com/jenkinsci/${project.artifactId}-plugin</url>
-    <tag>extensible-choice-parameter-1.4.0</tag>
+    <tag>HEAD</tag>
   </scm>
 
   <developers>