Force SSLv3 when connecting to Mobage

On my Mac, I'm using Ruby 1.9.3, which I built locally with `ruby-build` (installed via Homebrew). For whatever reason, my Ruby install is defaulting to SSLv2 connections. As a result, when I use the REST API client, the Mobage connection hangs for a minute, then times out.

This pull request forces the REST API client to use SSLv3, which solves the problem.

I'm told that this issue does not occur if you're using OS X's built-in (and ancient) version of Ruby.