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/popup/less/libs.less

@@ -0,0 +1,4 @@
+@import "~font-awesome/less/font-awesome.less";
+@import "~angular-toastr/src/toastr.less";
+@import (inline) "~sweetalert/dist/sweetalert.css";
+

src/popup/less/popup.less

@@ -1,31 +1,29 @@
-@import "../../../node_modules/bootstrap/less/bootstrap.less";
-@import (less) "../../../node_modules/angular/angular-csp.css";
+@import "~bootstrap/less/bootstrap.less";
+@import (less) "~angular/angular-csp.css";
 @import "variables.less";
 @import "mixins.less";
 @import "components.less";
 @import "animations.less";
 @import "plugins.less";
 @import "pages.less";
+@import (less) "../css/webfonts.css";
 
 html {
     -webkit-font-smoothing: antialiased;
 }
 
 body {
-    width: 320px !important;
-    height: 568px !important;
+    width: 375px !important;
+    height: 667px !important;
     background-color: @background-color;
     overflow: hidden;
 }
 
-/* @ifndef firefox */
-/* @ifndef edge */
-body {
-    width: 375px !important;
-    height: 667px !important;
+html.firefox body,
+html.edge body {
+    width: 320px !important;
+    height: 568px !important;
 }
-/* @endif */
-/* @endif */
 
 body.sm {
     width: 375px !important;

src/popup/less/variables.less

@@ -1,6 +1,6 @@
-@import (reference) "../../../node_modules/bootstrap/less/bootstrap.less";
-@import (reference) "../../../node_modules/bootstrap/less/mixins.less";
-@import (reference) "../../../node_modules/bootstrap/less/variables.less";
+@import (reference) "~bootstrap/less/bootstrap.less";
+@import (reference) "~bootstrap/less/mixins.less";
+@import (reference) "~bootstrap/less/variables.less";
 
 @font-family-sans-serif: "Open Sans", sans-serif;
 @text-color: #000000;