Rename PubSub as DeliveryService

Author: fortybillion

db.json

@@ -50,4 +50,4 @@
       "postId": 2
     }
   ]
-}
+}

src/addressbook/contact_list.jsx

@@ -1,11 +1,11 @@
-import {PubSub, Store} from 'react-at-rest'
+import {DeliveryService, Store} from 'react-at-rest'
 import React from 'react'
 import ContactListItem from './contact_list_item'
 import ContactForm from './contact_form'
 
 
-// PubSub provides a workflow for retrieving resources from the API
-class ContactList extends PubSub {
+// DeliveryService provides a workflow for retrieving resources from the API
+class ContactList extends DeliveryService {
 
   constructor(props) {
     super(props)

src/blog/blog_posts.cjsx

@@ -1,8 +1,8 @@
 React     = require 'react'
-{PubSub, Store}  = require 'react-at-rest'
+{DeliveryService, Store}  = require 'react-at-rest'
 Comments  = require './comments'
 
-module.exports = class BlogPosts extends PubSub
+module.exports = class BlogPosts extends DeliveryService
 
   @displayName = 'BlogPosts'
 

src/blog/comments.cjsx

@@ -1,8 +1,8 @@
 React = require 'react'
-{PubSub, Store} = require 'react-at-rest'
+{DeliveryService, Store} = require 'react-at-rest'
 CommentForm = require './comment_form'
 
-module.exports = class Comments extends PubSub
+module.exports = class Comments extends DeliveryService
 
   @displayName = 'Comments'