message: Rename expressify to express
  According with and because I find it more appropriate, what do you think?
diff: @@ -34,7 +34,7 @@ Here is all the code you need to create a RESTful, real-time message API that us
  ```js
  // app.js
  const feathers = require('@feathersjs/feathers');
  -const expressify = require('@feathersjs/express')
  +const express = require('@feathersjs/express')
  const socketio = require('@feathersjs/socketio');
  const handler = require('@feathersjs/errors/handler');
  @@ -42,14 +42,14 @@ const memory = require('feathers-memory');
  // Create a Feathers application that is also fully compatible
  // with an Express app
  -const app = expressify(feathers());
  +const app = express(feathers());
  // Parse HTTP JSON bodies
  -app.use(expressify.json());
  +app.use(express.json());
  // Parse URL-encoded params
  -app.use(expressify.urlencoded({ extended: true }));
  +app.use(express.urlencoded({ extended: true }));
  // Add REST API support
  -app.configure(expressify.rest());
  +app.configure(express.rest());
  // Configure Socket.io real-time APIs
  app.configure(socketio());
  // Register our memory "messages" service
  