Fix the build

.travis.yml

@@ -3,7 +3,7 @@ language: node_js
 node_js:
   # we recommend testing addons with the same minimum supported node version as Ember CLI
   # so that your addon works for all apps
-  - "6"
+  - "8"
 
 sudo: false
 dist: trusty

addon/mixin.js

@@ -1,3 +1,4 @@
+/* eslint-disable ember/no-new-mixins */
 import Mixin from '@ember/object/mixin';
 import { computed } from '@ember/object';
 import { get } from '@ember/object';
@@ -10,6 +11,7 @@ const bound = function(fnName) {
     if (fn) { // https://github.com/zeppelin/ember-click-outside/issues/1
       return fn.bind(this);
     }
+    return
   });
 };
 

package.json

@@ -14,43 +14,43 @@
   "repository": "https://github.com/zeppelin/ember-click-outside",
   "scripts": {
     "build": "ember build",
-    "lint:js": "eslint ./*.js addon addon-test-support app config lib server test-support tests",
+    "lint:js": "eslint .",
     "start": "ember serve",
     "test": "ember try:each"
   },
   "dependencies": {
-    "ember-cli-babel": "^6.6.0",
-    "ember-cli-htmlbars": "^2.0.1"
+    "ember-cli-babel": "^7.10.0",
+    "ember-cli-htmlbars": "^4.0.2"
   },
   "devDependencies": {
-    "broccoli-asset-rev": "^2.4.5",
-    "ember-cli": "~3.0.1",
-    "ember-cli-dependency-checker": "^2.0.0",
-    "ember-cli-eslint": "^4.2.1",
-    "ember-cli-htmlbars-inline-precompile": "^1.0.0",
-    "ember-cli-inject-live-reload": "^1.4.1",
-    "ember-cli-qunit": "^4.1.1",
+    "broccoli-asset-rev": "^3.0.0",
+    "ember-cli": "^3.13.1",
+    "ember-cli-dependency-checker": "^3.2.0",
+    "ember-cli-eslint": "^5.1.0",
+    "ember-cli-htmlbars-inline-precompile": "^3.0.0",
+    "ember-cli-inject-live-reload": "^2.0.1",
+    "ember-cli-qunit": "^4.2.0",
     "ember-cli-release": "^1.0.0-beta.2",
     "ember-cli-shims": "^1.2.0",
     "ember-cli-sri": "^2.1.0",
-    "ember-cli-uglify": "^2.0.0",
-    "ember-cli-update": "^0.14.0",
-    "ember-disable-prototype-extensions": "^1.1.2",
+    "ember-cli-uglify": "^3.0.0",
+    "ember-cli-update": "^0.43.3",
+    "ember-disable-prototype-extensions": "^1.1.3",
     "ember-export-application-global": "^2.0.0",
-    "ember-load-initializers": "^1.0.0",
+    "ember-load-initializers": "^2.0.0",
     "ember-maybe-import-regenerator": "^0.1.6",
     "ember-modifier-manager-polyfill": "^1.0.3",
     "ember-qunit-assert-helpers": "^0.2.2",
-    "ember-resolver": "^4.0.0",
-    "ember-source": "~3.8.0",
-    "ember-source-channel-url": "^1.0.1",
-    "ember-try": "^0.2.23",
-    "eslint-plugin-ember": "^5.0.0",
-    "eslint-plugin-node": "^5.2.1",
-    "loader.js": "^4.2.3"
+    "ember-resolver": "^5.3.0",
+    "ember-source": "^3.13.2",
+    "ember-source-channel-url": "^2.0.1",
+    "ember-try": "^1.0.0",
+    "eslint-plugin-ember": "^7.1.0",
+    "eslint-plugin-node": "^10.0.0",
+    "loader.js": "^4.7.0"
   },
   "engines": {
-    "node": "^6.* || >= 7.*"
+    "node": "8.* || 10.* || >= 12.*"
   },
   "ember-addon": {
     "configPath": "tests/dummy/config"