Add jsconfig and remove assert require

jsconfig.json

@@ -0,0 +1,16 @@
+{
+	// See https://go.microsoft.com/fwlink/?LinkId=759670
+	// for the documentation about the jsconfig.json format
+	"compilerOptions": {
+		"target": "es6",
+		"module": "commonjs",
+		"allowSyntheticDefaultImports": true
+	},
+	"exclude": [
+		"node_modules",
+		"bower_components",
+		"jspm_packages",
+		"tmp",
+		"temp"
+	]
+}

tests/test.js

@@ -1,5 +1,4 @@
 const Application = require("spectron").Application;
-const assert = require("assert");
 const path = require('path');
 const chai = require('chai');
 const chaiAsPromised = require('chai-as-promised');