Merge branch 'master' into greenkeeper/debug-4.1.0

Author: kratiahuja

.babelrc

@@ -1,14 +1,6 @@
 language: node_js
 node_js:
   - "stable"
-  - "4"
   - "6"
-
-env:
-  - CXX=g++-4.8 WORKER_COUNT=2
-addons:
-  apt:
-    sources:
-      - ubuntu-toolchain-r-test
-    packages:
-      - g++-4.8
+  - "8"
+  - "10"

.travis.yml

@@ -2,7 +2,7 @@
 
 [![Greenkeeper badge](https://badges.greenkeeper.io/ember-fastboot/fastboot.svg)](https://greenkeeper.io/)
 [![npm version](https://badge.fury.io/js/fastboot.svg)](https://badge.fury.io/js/fastboot)
-[![Build Status](https://travis-ci.org/ember-fastboot/fastboot.svg?branch=master)](https://travis-ci.org/ember-fastboot/ember-fastboot-server)
+[![Build Status](https://travis-ci.org/ember-fastboot/fastboot.svg?branch=master)](https://travis-ci.org/ember-fastboot/fastboot)
 ![Ember Version](https://embadge.io/v1/badge.svg?start=2.3.0)
 
 FastBoot is a library for rendering Ember.js applications in Node.js.
@@ -17,7 +17,7 @@ To serve server-rendered versions of your Ember app over HTTP, see the
 [FastBoot App
 Server](https://github.com/ember-fastboot/fastboot-app-server).
 
-FastBoot requires Node.js v4 or later.
+FastBoot requires Node.js v6 or later.
 
 ## Usage
 

README.md

@@ -13,7 +13,7 @@
     "url": "git+https://github.com/ember-fastboot/fastboot.git"
   },
   "engines": {
-    "node": ">= 4.0.0"
+    "node": ">= 6.0.0"
   },
   "keywords": [
     "ember",
@@ -22,7 +22,7 @@
   "author": "Tom Dale and FastBoot contributors",
   "license": "MIT",
   "bugs": {
-    "url": "https://github.com/ember-fastboot/fastboot-fastboot-server/issues"
+    "url": "https://github.com/ember-fastboot/fastboot/issues"
   },
   "homepage": "https://github.com/ember-fastboot/fastboot#readme",
   "dependencies": {

package.json

@@ -6,7 +6,6 @@ const chalk = require('chalk');
 
 const najax = require('najax');
 const SimpleDOM = require('simple-dom');
-const existsSync = require('exists-sync');
 const debug = require('debug')('fastboot:ember-app');
 
 const FastBootInfo = require('./fastboot-info');
@@ -123,7 +122,7 @@ class EmberApp {
       if (whitelist.indexOf(moduleName) > -1) {
         let nodeModulesPath = path.join(distPath, 'node_modules', moduleName);
 
-        if (existsSync(nodeModulesPath)) {
+        if (fs.existsSync(nodeModulesPath)) {
           return require(nodeModulesPath);
         } else {
           // If it's not on disk, assume it's a built-in node package

src/ember-app.js

@@ -1,8 +1,6 @@
 'use strict';
 
 const vm = require('vm');
-const fs = require('fs');
-const existsSync = require('exists-sync');
 const Sandbox = require('./../../../src/sandbox');
 
 /**