Base model refactor (#810)

* Big upgrades

* WIP: Stash

* Stash, 30 flow errors left

* Downgrade mobx

* WIP

* When I understand the difference between class and instance methods

* 💚

* Fixes: File import
Model saving edge cases
pinning and starring docs
Collection editing
Upgrade mobx devtools

* Notification settings saving works

* Disabled settings

* Document mailer

* Working notifications

* Colletion created notification
Ensure not notified for own actions

* Tidy up

* Document updated event only for document creation
Add indexes
Notification setting on user creation

* Commentary

* Fixed: Notification setting on signup

* Fix document move / duplicate stale data
Add BaseModel.refresh method

* Fixes: Title in sidebar not updated after editing document

* 💚

* Improve / restore error handling
Better handle offline errors

* 👕

app/models/Team.js

@@ -0,0 +1,15 @@
+// @flow
+import BaseModel from './BaseModel';
+
+class Team extends BaseModel {
+  id: string;
+  name: string;
+  avatarUrl: string;
+  slackConnected: boolean;
+  googleConnected: boolean;
+  sharing: boolean;
+  subdomain: ?string;
+  url: string;
+}
+
+export default Team;