SSL support for SMTP notifications

[gi-lunaweb]

Hi,

This changeset adds SSL support to God's mail notifications.

It adds two options to God::Contact::Email :

• enable_starttls_auto
• openssl_verify_mode

These work the same as in Mail::SMTP, except openssl_verify_mode only accept and OpenSSL::SSL::VERIFY_* constant.

I don't add any test to test/configs/contact as you may prefer to use your own credentials.

[mojombo]

It would be great if you could add a test to this that just uses mocks and stubs so you don't have to test real credentials.