Fix RAM usage on multiple usages

buildSrc/src/steamwar.devserver.gradle

@@ -82,11 +82,15 @@ class DevServer extends DefaultTask {
     @Internal
     String host
 
+    @Internal
+    Boolean running = true
+
     class Finalizer extends DefaultTask {
 
         Finalizer() {
             super()
             doLast {
+                running = false
                 if (processInput != null) {
                     processInput.write(template.endsWith("Velocity") ? "end\n" : "stop\n")
                     processInput.flush()
@@ -137,7 +141,6 @@ class DevServer extends DefaultTask {
         devPy.append(" $template")
 
         def process = new ProcessBuilder("ssh", host, "-T", devPy.toString()).start()
-        def running = true;
         def processOutput = new BufferedReader(new InputStreamReader(process.inputStream))
         new Thread({
             while (running) {