Log Message:
Update "stunnel" package to version 4.42. Changes since version 4.39:
- New features
  - New verify level 0 to request and ignore peer certificate.  This
    feature is useful with the new Windows GUI menu to save cached peer
    certificate chains, as SSL client certificates are not sent by default.
  - Manual page has been updated.
  - Removed support for changing Windows Service name with "service" \ 
option.
  - Hardcoded 2048-bit DH parameters are used as a fallback if DH parameters
    are not provided in stunnel.pem.
  - Default "ciphers" value updated to prefer ECDH:
    "ALL:!SSLv2:!aNULL:!EXP:!LOW:-MEDIUM:RC4:+HIGH".
  - Default ECDH curve updated to "prime256v1".
  - Removed support for temporary RSA keys (used in obsolete export ciphers).
- Bugfixes
  - The -quiet commandline option was applied to *all* message boxes.
  - Silent install (/S option) no longer attempts to create stunnel.pem.