[client] Rewrite to use es6 import everywhere for npm modules

Nibriboard/ClientFiles/BoardWindow.js

@@ -1,9 +1,9 @@
 "use strict";
 
 // npm modules
-window.EventEmitter = require("event-emitter-es6");
-window.FaviconNotification = require("favicon-notification");
-window.panzoom = require("pan-zoom");
+import EventEmitter from "event-emitter-es6";
+import FaviconNotification from "favicon-notification";
+import panzoom from "pan-zoom";
 
 // Our files
 import RippleLink from './RippleLink';
@@ -140,7 +140,7 @@ class BoardWindow extends EventEmitter
 		FaviconNotification.add();
 		
 		// Setup the input controls
-		window.panzoom(canvas, this.handleCanvasMovement.bind(this));
+		panzoom(canvas, this.handleCanvasMovement.bind(this));
 		
 		// --~~~--
 		

Nibriboard/ClientFiles/ClientManager.js

@@ -1,6 +1,6 @@
 "use strict";
 
-window.EventEmitter = require("event-emitter-es6");
+import EventEmitter from "event-emitter-es6";
 
 import OtherClient from './OtherClient';
 import Vector from './Utilities/Vector';

Nibriboard/ClientFiles/Interface.js

@@ -1,6 +1,6 @@
 "use strict";
 
-window.EventEmitter = require("event-emitter-es6");
+import EventEmitter from "event-emitter-es6";
 
 import BrushIndicator from './BrushIndicator.js';
 

Nibriboard/ClientFiles/Pencil.js

@@ -1,12 +1,11 @@
 "use strict";
 
+import cuid from "cuid";
+import { simplify_line } from "visvalingam-simplifier";
+
 import Vector from './Utilities/Vector';
-
 import Mouse from './Utilities/Mouse';
 
-var cuid = require("cuid");
-var simplify_line = require("visvalingam-simplifier").simplify_line;
-
 class Pencil
 {
 	/**

Nibriboard/ClientFiles/RippleLink.js

@@ -2,7 +2,7 @@
 
 import { WebSocketStates, ReverseWebSocketStates } from './Utilities/WebSocketStates';
 
-const EventEmitter = require("event-emitter-es6");
+import EventEmitter from "event-emitter-es6";
 
 class RippleLink extends EventEmitter
 {

Nibriboard/ClientFiles/index.js

@@ -1,6 +1,6 @@
 "use strict";
 
-window.FpsIndicator = require("fps-indicator");
+import FpsIndicator from "fps-indicator";
 
 import BoardWindow from './BoardWindow';