Datastore options should default to TLS1, not SSL3

Otherwise, we risk getting our connections killed by particularly
aggressive DPI devices (IPS, firewalls, etc)

Squashed commit of the following:

commit 5e203851d5c9dce1fe984b106ce3031a3653e54b
Author: Tod Beardsley <tod_beardsley@rapid7.com>
Date:   Wed Oct 15 10:19:04 2014 -0500

    Whoops missed one

commit 477b15a08e06e74d725f1c45486b37e4b403e3c2
Author: Tod Beardsley <tod_beardsley@rapid7.com>
Date:   Wed Oct 15 10:16:59 2014 -0500

    Other datastore options also want TLS1 as default

commit 8d397bd9b500ff6a8462170b4c39849228494795
Author: Tod Beardsley <tod_beardsley@rapid7.com>
Date:   Wed Oct 15 10:12:06 2014 -0500

    TCP datastore opts default to TLS1

    Old encryption is old. See also: POODLE
Land 4022, datastore should default TLS1 vs SSL3