Get Laravel Dusk installed using PhantomJS so it can work with Travis CI easily

tests/BrowserKitTest.php

@@ -1,28 +0,0 @@
-<?php
-
-use Illuminate\Contracts\Console\Kernel;
-use Laravel\BrowserKitTesting\TestCase as BaseTestCase;
-
-abstract class BrowserKitTest extends BaseTestCase
-{
-    /**
-     * The base URL to use while testing the application.
-     *
-     * @var string
-     */
-    protected $baseUrl = 'http://localhost';
-
-    /**
-     * Creates the application.
-     *
-     * @return \Illuminate\Foundation\Application
-     */
-    public function createApplication()
-    {
-        $app = require __DIR__.'/../bootstrap/app.php';
-
-        $app->make(Kernel::class)->bootstrap();
-
-        return $app;
-    }
-}