reverting recent SSL-related patches

[Nicolas Sebrecht]

On Mon, Jan 12, 2015 at 04:56:19PM +0100, Nicolas Sebrecht wrote:

> I'm not convinced because it fails at the main purpose of having
> defaults: having to enable defaults make them options, not a default.

Hum, another good solution is to revert the default-CA patches and add
the OS-specific paths as comments to offlineimap.conf: no regression, no
complexity added to the code or assumptions to what the users did or not
while setting up authentication.

-- 
Nicolas Sebrecht