Websocket Support (#937)

* Atom / RSS meta link

* Spike

* Feeling good about this spike now

* Remove document.collection

* Remove koa.ctx from all presenters to make them portable outside requests

* Remove full serialized model from events
Move events.add to controllers for now, will eventually be in commands

* collections.create event
parentDocument -> parentDocumentId

* Fix up deprecated tests

* Fixed: Doc creation

* documents.move

* Handle collection deleted

* 💚

* Authorize room join requests

* Move starred data structure
Account for documents with no context on sockets

* Add socket.io-redis

* Add WEBSOCKETS_ENABLED env variable to disable websockets entirely for self hosted
New installations will default to true, existing installations to false

* 💚 No need for promise response here

* Reload notice

server/pages/developers/Api.js

@@ -265,11 +265,11 @@ export default function Pricing() {
               This method allows you to publish a new document under an existing
               collection. By default a document is set to the parent collection
               root. If you want to create a subdocument, you can pass{' '}
-              <Code>parentDocument</Code> to set parent document.
+              <Code>parentDocumentId</Code> to set parent document.
             </Description>
             <Arguments>
               <Argument
-                id="collection"
+                id="collectionId"
                 description={
                   <span>
                     <Code>ID</Code> of the collection to which the document is
@@ -289,7 +289,7 @@ export default function Pricing() {
                 required
               />
               <Argument
-                id="parentDocument"
+                id="parentDocumentId"
                 description={
                   <span>
                     <Code>ID</Code> of the parent document within the collection