Vattenfall InCharge v0.5.4-beta

Fixed

• Token refresh no longer fails after ~1 hour. The refresh request was sending
  non-standard scope and redirect_uri parameters that Vattenfall's OAuth
  server recently started rejecting, causing the "Vattenfall InCharge
  authentication required" notification to appear every session.

  Per RFC 6749 §6, only grant_type, client_id and refresh_token are
  required for a refresh grant — the extra fields have been removed.

Notes

• Beta release for validating the fix. No other changes from v0.5.3.
• If no "authentication required" notification appears after 1–2 hours,
  the fix is confirmed and will be promoted to v0.5.4 stable.