Setup Webpack & TypeScript (#316)

* TypeScript and WebPack.

* Minor cleanup.

* Add background.js as entry point to webpack.

* Use downloaded fonts for better performance.
Remove google-fonts-webpack-plugin.

* Add the remaining entry points and setup notification bar.

* Update readme for webpack.

* Convert CipherItems to TypeScript to demonstrate how a component looks in TS.

* Fix edge requirering a custom angular version.

* Rewrite gulp tasks for packaging releases.

* Re-add the webpack gulp plugin.

* Remove unessesary line in analytics.

src/notification/bar.js

@@ -1,4 +1,6 @@
-$(function () {
+require('./bar.less');
+
+$(function () {
     var content = document.getElementById('content'),
         closeButton = $('#close-button');