Users#show

## Users [/users]
### Fetch user information [GET]

+ Request

    + Header

            Accept: application/vnd.api+json;revision=1

    + Body

            { "id": "1" }


+ Response 200 (application/json)

        { "user": { "id": 34, "bio": null, "display_image": "https://gravatar.com/avatar/7fc04373cf0c63e376baec602fec8f45.jpg?size=150&default=http://localhost/assets/default-avatars/5.png", "display_name": "Joãozinho", "email": "person0.9132588986740293@example.com", "facebook_url": null, "linkedin_url": null, "other_url": null, "profile_type": "personal", "twitter_url": null, "created_at": "2014-07-01T14:30:30+00:00" } ] }

Closes #7.
It's explained in the [commit message](a229870). Since you don't agree, I'll be rebasing to detach it from the branch.