[maven-release-plugin] prepare release 2.3.9

Author: r-brown

NetLicensingClient-demo/pom.xml

@@ -6,7 +6,7 @@
     <parent>
         <groupId>com.labs64.netlicensing</groupId>
         <artifactId>netlicensing-client-parent</artifactId>
-        <version>2.4.0-SNAPSHOT</version>
+        <version>2.3.9</version>
     </parent>
 
     <artifactId>netlicensing-client-demo</artifactId>

NetLicensingClient/pom.xml

@@ -6,7 +6,7 @@
     <parent>
         <groupId>com.labs64.netlicensing</groupId>
         <artifactId>netlicensing-client-parent</artifactId>
-        <version>2.4.0-SNAPSHOT</version>
+        <version>2.3.9</version>
     </parent>
 
     <artifactId>netlicensing-client</artifactId>

pom.xml

@@ -5,7 +5,7 @@
 
     <groupId>com.labs64.netlicensing</groupId>
     <artifactId>netlicensing-client-parent</artifactId>
-    <version>2.4.0-SNAPSHOT</version>
+    <version>2.3.9</version>
     <packaging>pom</packaging>
     <name>Labs64 :: NetLicensing :: Client :: Parent</name>
     <url>http://netlicensing.io</url>
@@ -29,7 +29,7 @@
         <url>https://github.com/Labs64/NetLicensingClient-java</url>
         <connection>scm:git:git@github.com:Labs64/NetLicensingClient-java.git</connection>
         <developerConnection>scm:git:git@github.com:Labs64/NetLicensingClient-java.git</developerConnection>
-        <tag>HEAD</tag>
+        <tag>2.3.9</tag>
     </scm>
 
     <issueManagement>