Restructured Test Suite

- separated tests into e2e and unit directories
- created configs directory structure to support test framework
- added/modified `npm run test`, `npm run test:unit` and `npm run test:e2e` to target all, unit and e2e tests respectively
- modified some of the test names to be more descriptive

New structure of the Test Suite has following directory tree:

```
tests
├── configs
│   ├── env.js
│   └── modules
│       ├── clock
│       │   ├── clock_12hr.js
│       │   ├── clock_24hr.js
│       │   └── clock_showPeriodUpper.js
│       └── helloworld
│           └── helloworld.js
├── e2e
│   ├── env_spec.js
│   └── modules
│       ├── clock_spec.js
│       └── helloworld_spec.js
└── unit
    ├── functions
    │   └── cmp_versions_spec.js
    └── global_vars
        └── root_path_spec.js
```

tests/e2e/env_spec.js

@@ -0,0 +1,51 @@
+const Application = require("spectron").Application;
+const path = require("path");
+const chai = require("chai");
+const chaiAsPromised = require("chai-as-promised");
+
+var electronPath = path.join(__dirname, "../../", "node_modules", ".bin", "electron");
+
+if (process.platform === "win32") {
+	electronPath += ".cmd";
+}
+
+var appPath = path.join(__dirname, "../../js/electron.js");
+
+var app = new Application({
+	path: electronPath,
+	args: [appPath]
+});
+
+global.before(function () {
+	chai.should();
+	chai.use(chaiAsPromised);
+});
+
+describe("Electron app environment", function () {
+	this.timeout(10000);
+
+	before(function() {
+		// Set config sample for use in test
+		process.env.MM_CONFIG_FILE = "tests/configs/env.js";
+	});
+
+	beforeEach(function (done) {
+		app.start().then(function() { done(); } );
+	});
+
+	afterEach(function (done) {
+		app.stop().then(function() { done(); });
+	});
+
+
+	it("is set to open new app window", function () {
+		return app.client.waitUntilWindowLoaded()
+			.getWindowCount().should.eventually.equal(1);
+	});
+
+	it("sets correct window title", function () {
+		return app.client.waitUntilWindowLoaded()
+			.getTitle().should.eventually.equal("Magic Mirror");
+	});
+
+});