put tablet version of users.js into a different file

scripts/system/tablet-users.js

@@ -0,0 +1,67 @@
+"use strict";
+
+//
+//  users.js
+//
+//  Created by Faye Li on 18 Jan 2017.
+//  Copyright 2017 High Fidelity, Inc.
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+
+(function() { // BEGIN LOCAL_SCOPE
+    var USERS_URL = "https://hifi-content.s3.amazonaws.com/faye/tablet-dev/users.html";
+    var FRIENDS_WINDOW_URL = "https://metaverse.highfidelity.com/user/friends";
+    var FRIENDS_WINDOW_WIDTH = 290;
+    var FRIENDS_WINDOW_HEIGHT = 500;
+    var FRIENDS_WINDOW_TITLE = "Add/Remove Friends";
+    var tablet = Tablet.getTablet("com.highfidelity.interface.tablet.system");
+    var button = tablet.addButton({
+        icon: "icons/tablet-icons/people-i.svg",
+        text: "Users"
+    });
+
+    function onClicked() {
+        tablet.gotoWebScreen(USERS_URL);
+    }
+
+    function onWebEventReceived(event) {
+        print("Script received a web event, its type is " + typeof event);
+        if (typeof event === "string") {
+            event = JSON.parse(event);
+        }
+        if (event.type === "ready") {
+            // send username to html
+            var myUsername = GlobalServices.username;
+            var object = {
+                "type": "sendUsername",
+                "data": {"username": myUsername}
+            };
+            print("sending username: " + myUsername);
+            tablet.emitScriptEvent(JSON.stringify(object));
+        }
+        if (event.type === "manage-friends") {
+            // open a web overlay to metaverse friends page
+            var friendsWindow = new OverlayWebWindow({
+                title: FRIENDS_WINDOW_TITLE,
+                width: FRIENDS_WINDOW_WIDTH,
+                height: FRIENDS_WINDOW_HEIGHT,
+                visible: false
+            });
+            friendsWindow.setURL(FRIENDS_WINDOW_URL);
+            friendsWindow.setVisible(true);
+            friendsWindow.raise();
+        }
+    }
+
+    button.clicked.connect(onClicked);
+    tablet.webEventReceived.connect(onWebEventReceived);
+
+    function cleanup() {
+        button.clicked.disconnect(onClicked);
+        tablet.removeButton(button);
+    }
+
+    Script.scriptEnding.connect(cleanup);
+}()); // END LOCAL_SCOPE