F23: disable RC4 and SSL 3.0 by default

[Nikos Mavrogiannopoulos]

On Mon, 2015-04-27 at 10:45 -0400, Jan Kurik wrote:
> Hi all!
> Fedora 22 is at its Beta stage now, so it is time to take a closer look on Fedora 23 plans.

A change I should have proposed earlier but didn't have the time, is to
disable SSL 3.0 and RC4 from F23 by default. That will only affect
openssl and gnutls-based applications.

https://fedoraproject.org/wiki/Changes/RemoveSSL3andRc4