Fix issue where devs couldn't run serve:prod

This was caused by the wait-for-cluster rule which never finished.
I've moved it to local-up-cluster. Everything works now as expected.

build/cluster.js

@@ -88,7 +88,7 @@ function executeKubectlCommand(command, doneFn) {
  *  * Install golang
  *  * Install etcd
  */
-gulp.task('local-up-cluster', ['spawn-cluster']);
+gulp.task('local-up-cluster', ['spawn-cluster', 'wait-for-cluster']);
 
 /**
  * Tears down a Kubernetes cluster.

build/serve.js

@@ -127,19 +127,17 @@ gulp.task('spawn-backend', ['backend', 'kill-backend'], function() {
  * backend process is killed beforehand, if any. In production the backend does serve the frontend
  * pages as well.
  */
-gulp.task(
-    'spawn-backend:prod', ['build-frontend', 'backend:prod', 'kill-backend', 'wait-for-cluster'],
-    function() {
-      runningBackendProcess = child.spawn(
-          path.join(conf.paths.dist, conf.backend.binaryName),
-          [`--apiserver-host=${conf.backend.apiServerHost}`, `--port=${conf.frontend.serverPort}`],
-          {stdio: 'inherit', cwd: conf.paths.dist});
-
-      runningBackendProcess.on('exit', function() {
-        // Mark that there is no backend process running anymore.
-        runningBackendProcess = null;
-      });
-    });
+gulp.task('spawn-backend:prod', ['build-frontend', 'backend:prod', 'kill-backend'], function() {
+  runningBackendProcess = child.spawn(
+      path.join(conf.paths.dist, conf.backend.binaryName),
+      [`--apiserver-host=${conf.backend.apiServerHost}`, `--port=${conf.frontend.serverPort}`],
+      {stdio: 'inherit', cwd: conf.paths.dist});
+
+  runningBackendProcess.on('exit', function() {
+    // Mark that there is no backend process running anymore.
+    runningBackendProcess = null;
+  });
+});
 
 /**
  * Kills running backend process (if any).

src/app/backend/dashboard.go

@@ -43,14 +43,6 @@ func main() {
 		glog.Fatal(err)
 	}
 
-	serverAPIVersion, err := apiserverClient.ServerAPIVersions()
-	if err != nil {
-		glog.Fatal(err)
-	}
-
-	// Display Apiserver version. This is just for tests.
-	println("Server API version: " + serverAPIVersion.GoString())
-
 	// Run a HTTP server that serves static public files from './public' and handles API calls.
 	// TODO(bryk): Disable directory listing.
 	http.Handle("/", http.FileServer(http.Dir("./public")))