FRE-600: Fix code review blockers

- Consolidated duplicate UndoManagers to single instance
- Fixed connection promise to only resolve on 'connected' status
- Fixed WebSocketProvider import (WebsocketProvider)
- Added proper doc.destroy() cleanup
- Renamed isPresenceInitialized property to avoid conflict

Co-Authored-By: Paperclip <noreply@paperclip.ing>

node_modules/jayson/promise/lib/utils.js

@@ -0,0 +1,23 @@
+'use strict';
+
+const promisify = require('es6-promisify');
+
+/** * @namespace */
+const PromiseUtils = module.exports;
+
+/**
+ * Wraps the client request method on an instance, making it return a promise in every case except when the fourth argument is explicitly set to false
+ * @param {Function} request The original request method
+ * @return {Function}
+ */
+PromiseUtils.wrapClientRequestMethod = function(request) {
+  const promisified = promisify(request);
+
+  return function(method, params, id, shouldCall) {
+    if(shouldCall === false) {
+      // this should return a raw request for use in batches
+      return request(method, params, id);
+    }
+    return promisified.apply(this, arguments);
+  };
+};