message: Make throwing EventUnknownError pretty
diff: @@ -139,14 +139,12 @@ export class MatrixEventProcessor {
  } else if (event.type === "m.room.encryption" && context.rooms.remote) {
  try {
  await this.HandleEncryptionWarning(event.room_id);
  - return;
  } catch (err) {
  throw wrapError(err, Unstable.EventNotHandledError, `Failed to handle encrypted room, ${err}`);
  }
  - } else {
  - throw new Unstable.EventUnknownError("Got non m.room.message event");
  + return;
  }
  - throw new Unstable.EventUnknownError(); // Shouldn't be reachable
  + throw new Unstable.EventUnknownError(`${event.event_id} not processed by bridge`);
  }
  public async HandleEncryptionWarning(roomId: string): Promise<void> {
  