DTD

Merge: 9c7ea57 d203cc1
Author: Bjvanminnen <Bjvanminnen@gmail.com>
Date:   Mon Aug 18 16:26:17 2014 -0700

    Merge pull request #821 from code-dot-org/jigsawGhost

    [Finishes #77161202] add ghost image to jigsaw assessment

commit d203cc12100657829141e75aa1addd4317ec1c5e
Author: Brent Van Minnen <bjvanminnen@gmail.com>
Date:   Mon Aug 18 16:18:44 2014 -0700

    [Finishes #77161202] add ghost image to jigsaw assessment