add basic web client configuration

src/scripts/settings/webSettings.js

@@ -0,0 +1,30 @@
+define(['appStorage', 'events'], function (appStorage, events) {
+    'use strict';
+
+    function readConfig(path, callback) {
+        var file = new XMLHttpRequest();
+        file.overrideMimeType("application/json");
+        file.open("GET", path, true);
+        file.onreadystatechange = function() {
+            if (file.readyState === 4 && file.status == "200") {
+                callback(file.responseText);
+            }
+        }
+
+        file.send(null);
+    }
+
+    var data = {};
+
+    function WebSettings() {
+        readConfig("/config.json", function(text) {
+            data = JSON.parse(text);
+        });
+    }
+
+    WebSettings.prototype.getMultiserver = function () {
+        return data.multiserver !== false;
+    };
+
+    return new WebSettings();
+});