[maven-release-plugin] prepare release plot-2.4.0

Author: MarkEWaite

pom.xml

@@ -10,15 +10,15 @@
   </parent>
 
   <artifactId>plot</artifactId>
-  <version>${revision}${changelist}</version>
+  <version>2.4.0</version>
   <packaging>hpi</packaging>
   <name>Plot plugin</name>
   <url>https://github.com/jenkinsci/plot-plugin</url>
 
   <scm>
     <connection>scm:git:https://github.com/${gitHubRepo}.git</connection>
     <developerConnection>scm:git:git@github.com:${gitHubRepo}.git</developerConnection>
-    <tag>${scmTag}</tag>
+    <tag>plot-2.4.0</tag>
     <url>https://github.com/${gitHubRepo}</url>
   </scm>