[PVE-User] Change pveproxy to tls1.2

[Dietmar Maurer]

> I updated to proxmox 3.4 and now I see that this line is back in 
> /usr/bin/pveproxy.
> When I look at the git log, there's a line for removing tlsv1
> -           method => "tlsv1",
> but after updating to 3.4, the line is still there.
> 
> *sslv2, sslv3 =>0 *are there, just as we talked in December.
> 
> Any comments?

We reverted that change, because it breaks IE.