message: Don't send really old events.
diff: @@ -17,6 +17,7 @@ const ICON_URL = "https://matrix.org/_matrix/media/r0/download/matrix.org/mlxoES
  const JOIN_DELAY = 6000;
  const HTTP_UNSUPPORTED = 501;
  const ROOM_NAME_PARTS = 2;
  +const AGE_LIMIT = 15*60*1000;
  export class MatrixRoomHandler {
  private config: DiscordBridgeConfig;
  @@ -66,6 +67,10 @@ export class MatrixRoomHandler {
  public OnEvent (request, context) {
  const event = request.getData();
  + if(event.unsigned.age > AGE_LIMIT) {
  + log.warn("MatrixRoomHandler", "Skipping event due to age %s > %s", event.unsigned.age, AGE_LIMIT);
  + return;
  + }
  if (event.type === "m.room.member" && event.content.membership === "invite") {
  this.HandleInvite(event);
  }
  