Reorganize project. Add folder for shared code between backend/dashboard. Switch from jest to ava for tests.

backend/src/plugins/GuildInfoSaver.ts

@@ -0,0 +1,25 @@
+import { ZeppelinPlugin } from "./ZeppelinPlugin";
+import { AllowedGuilds } from "../data/AllowedGuilds";
+import { MINUTES } from "../utils";
+
+export class GuildInfoSaverPlugin extends ZeppelinPlugin {
+  public static pluginName = "guild_info_saver";
+  public static showInDocs = false;
+  protected allowedGuilds: AllowedGuilds;
+  private updateInterval;
+
+  onLoad() {
+    this.allowedGuilds = new AllowedGuilds();
+
+    this.updateGuildInfo();
+    this.updateInterval = setInterval(() => this.updateGuildInfo(), 60 * MINUTES);
+  }
+
+  onUnload() {
+    clearInterval(this.updateInterval);
+  }
+
+  protected updateGuildInfo() {
+    this.allowedGuilds.updateInfo(this.guildId, this.guild.name, this.guild.iconURL, this.guild.ownerID);
+  }
+}