- Display all information in one place.
- Checkbox to enable the certificate to use the same password as the
  Keystore.
- Display information when alias field is empty.
- Misc. layout changes.

Task-number: QTCREATORBUG-10061
Change-Id: I99a3e7019dfbf72bcd2374594f3ebe45c26680d2
Reviewed-by: Daniel Teske <daniel.teske@digia.com>
Reviewed-by: BogDan Vatra <bogdan@kde.org>