flowtyped everything, some functional, safety, and structural changes

rpc/servers.js

@@ -0,0 +1,15 @@
+// @flow
+import { type AppContext } from '../Roleypoly'
+import { type Context } from 'koa'
+import { type Guild } from 'discord.js'
+
+export default ($: AppContext) => ({
+  listRelevantServers (ctx: Context) {
+    return $.discord.client.guilds.map<{
+      url: string,
+      name: string,
+      members: number,
+      roles: number
+    }>((g: Guild) => ({ url: `${$.config.appUrl}/s/${g.id}`, name: g.name, members: g.members.array().length, roles: g.roles.array().length }))
+  }
+})