corrected eslint preloader; fixing eslint errors

app/package.json

@@ -36,6 +36,7 @@
     "babel-runtime": "^6.20.0",
     "brfs": "^1.4.3",
     "eslint": "^3.12.2",
+    "eslint-loader": "^1.6.1",
     "rimraf": "^2.5.4",
     "transform-loader": "^0.2.3",
     "webpack": "^1.14.0"

app/src/node.js

@@ -1,5 +1,6 @@
 import Pod from './pod.js';
 import Bars from './bars.js'
+import {FACTORS} from './utils.js'
 const PIXI = require('pixi.js');
 
 export default class Node extends PIXI.Graphics {

app/webpack.config.js

@@ -27,7 +27,7 @@ module.exports = {
     ],
     module: {
         preLoaders: [
-            {test: /\.jsx?$/, exclude: /(node_modules|lodash)/, loaders: ['eslint']}
+            {test: /\.js$/, loader: 'eslint-loader', exclude: /node_modules/}
         ],
         loaders: [
             {test: /\.js$/, exclude: /node_modules/, loader: 'babel-loader', query: {presets: ['es2015']}},