Updates broken gitub_api gem and adds two-factor authentication setup.

Fixes: #57
Closes #70

LGTM given by: @nhance

Squashed commit of the following:

commit 7df552dc0f77e8545b8dff52a51e569b69c1007d
Author: Valentino <valentino@reenhanced.com>
Date:   Mon Oct 27 13:25:25 2014 -0400

    Version bump

commit 9c72fa35fcddb8cc09e2d8a5dd27c73329de220c
Author: Valentino <valentino@reenhanced.com>
Date:   Mon Oct 27 11:56:24 2014 -0400

    Updates broken gitub_api gem and adds two-factor authentication setup.