Disable https on Windows for 4.0

We appear to be missing the correct dll. I'm out of time trying to track
this down, so I just switched Subsurface to access divelogs.de via http on
Windwos.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Final update to ReleaseNotes for 4.0

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>