Feature: Async Connection via async feathersClient

_docs/can-connect-feathers.md

@@ -33,4 +33,27 @@ var feathersClient = feathers()
 module.exports = feathersClient;
 ```
 
-> Pro tip: If you are planning on using Done-SSR, exchange the `socket.io-client/dist/socket.io` module for `steal-socket.io` in the above example.
+> Pro tip: If you are planning on using Done-SSR, exchange the `socket.io-client/dist/socket.io` module for `steal-socket.io` in the above example.
+
+you can also define the client async as a Promise here is a little conditional loading example using StealJS
+
+```js
+// models/feathers-async.js
+/* global window */
+import loader from '@loader'; // a Global created when loaded with SystemJS or Steal
+
+let clientUrl;
+
+if (window && window.fetch) {
+  clientUrl = '~/models/feathers/v3/feathers-client.socketio.js'; // => Same content as models/feathers.js
+} else {
+  clientUrl = '~/models/feathers/v3/feathers-client.rest.js'; // => Feathers Client Configured with rest Provider
+} 
+
+export const feathersClient = loader.import(clientUrl).then((module)=>{ return module.feathersClient; }, err=>{
+  new Error('Feathers-client Error '+ clientUrl,err);
+}); 
+
+
+export default feathersClient;
+```

_docs/service/service.md

@@ -12,6 +12,8 @@ connect([
   feathersService,
   realtime
 ], {
+  // if your feathersClient is a Promise 
+  // feathersService: feathersClient.then((con)=>con.service('/api/todos'))
   feathersService: feathersClient.service('/api/todos')
 });
 ```

service/service.js

@@ -18,16 +18,18 @@ module.exports = connect.behavior('data/feathers-service', function () {
 		throw new Error('You must provide a feathersService to the feathers-service behavior: ' + helpURL);
 	}
 
-	var service = this.feathersService;
+	var service = Promise.resolve(this.feathersService);
 
 	return {
 		init: function () {
 			var self = this;
 			// Connect to real-time events.
-			service.on('created', function (message) { self.createInstance(message); });
-			service.on('updated', function (message) { self.updateInstance(message); });
-			service.on('patched', function (message) { self.updateInstance(message); });
-			service.on('removed', function (message) { self.destroyInstance(message); });
+		        service.then(instance=>{
+			  instance.on('created', function (message) { self.createInstance(message); });
+			  instance.on('updated', function (message) { self.updateInstance(message); });
+			  instance.on('patched', function (message) { self.updateInstance(message); });
+			  instance.on('removed', function (message) { self.destroyInstance(message); });
+		        });
 		},
 
 		getListData: function (params) {