gwenhywfar: 4.15.3 -> 4.17.0

 * 4.17.0: A few smaller fixes.
 * 4.16.0beta: It's now possible to show saved passwords from the
               GWEN_PASSWD_STORE file.
 * 4.15.6beta: Improve Certificate handling with TLS connections.
 * 4.15.5beta: Fix problem with some servers aborting SSL connections.

The full changelogs in German can be found at:

https://www.aquamaniac.de/sites/news/index.php



Built and tested successfully on my machine.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>