chore: Upgrade Babel, Jest, Eslint (#1437)

* chore: Upgrade Prettier 1.8 -> 2.0

* chore: Upgrade Babel 6 -> 7

* chore: Upgrade eslint plugins

* chore: Add eslint import/order rules

* chore: Update flow-typed deps

server/commands/documentMover.js

@@ -1,7 +1,7 @@
 // @flow
+import { type Context } from "koa";
 import { Document, Collection, Event } from "../models";
 import { sequelize } from "../sequelize";
-import { type Context } from "koa";
 
 export default async function documentMover({
   user,

server/commands/documentMover.test.js

@@ -1,11 +1,11 @@
 /* eslint-disable flowtype/require-valid-file-annotation */
 import documentMover from "../commands/documentMover";
-import { flushdb, seed } from "../test/support";
 import { buildDocument, buildCollection } from "../test/factories";
+import { flushdb, seed } from "../test/support";
 
-beforeEach(flushdb);
+beforeEach(() => flushdb());
 
-describe("documentMover", async () => {
+describe("documentMover", () => {
   const ip = "127.0.0.1";
 
   it("should move within a collection", async () => {

server/commands/userInviter.js

@@ -1,7 +1,7 @@
 // @flow
 import { uniqBy } from "lodash";
-import { User, Event, Team } from "../models";
 import mailer from "../mailer";
+import { User, Event, Team } from "../models";
 import { sequelize } from "../sequelize";
 
 type Invite = { name: string, email: string };

server/commands/userInviter.test.js

@@ -1,11 +1,11 @@
 /* eslint-disable flowtype/require-valid-file-annotation */
 import userInviter from "../commands/userInviter";
-import { flushdb } from "../test/support";
 import { buildUser } from "../test/factories";
+import { flushdb } from "../test/support";
 
-beforeEach(flushdb);
+beforeEach(() => flushdb());
 
-describe("userInviter", async () => {
+describe("userInviter", () => {
   const ip = "127.0.0.1";
 
   it("should return sent invites", async () => {