drop --sslv3 flag

[martinlindhe]

(which forced SSL v3), while https://ydns.io/ serves a TLS 1.2 cert, thus breaking the updater

[Mikaela]

Could you update the commit message or pull request and add "Closes #19" to the end so that issue gets closed when this is merged?

No one should support SSLv3 nowadays, because of POODLE and that probably happened with ydns and updater was forgotten.

[commx]

Thanks for the commit.

Seems like I forgot to modify this script to make sure that it still works, as we've explicitly blacklisted SSLv3 on server-side.

The --sslv3 was added some time ago [#10] by an contributor to ensure that we find a way to support SSL/TLS transport even for cURL versions which are quite old (those who may be older than 8-10+ years). By omitting the --sslv3 switch, cURL will automatically choose the best available protocol version.

Closes #19 too.

[martinlindhe]

Merge too? :)