message: Get the updates.json link from the toggl.github.io/toggldesktop/assets/updates-link.txt
diff: @@ -1376,7 +1376,7 @@ error Context::downloadUpdate() {
  {
  HTTPSRequest req;
  req.host = "https://toggl.github.io";
  - req.relative_url = "/toggldesktop/assets/releases/updates.json";
  + req.relative_url = "/toggldesktop/assets/updates-link.txt";
  TogglClient client;
  HTTPSResponse resp = client.Get(req);
  @@ -1384,6 +1384,14 @@ error Context::downloadUpdate() {
  return resp.err;
  }
  + Poco::URI uri(resp.body);
  + req.host = uri.getScheme() + "://" + uri.getHost();
  + req.relative_url = uri.getPathEtc();
  + resp = client.Get(req);
  + if (resp.err != noError) {
  + return resp.err;
  + }
  +
  Json::Value root;
  Json::Reader reader;
  if (!reader.parse(resp.body, root)) {
  