title: Resizing remoted image(carrierwave)
body: <p>I use <code>carrierwave</code> and <code>omniauth</code>(and <code>omniauth-facebook</code>) gems in my app. I think it makes no sense to describe how I use these gems. I get image from <code>request.env["omniauth.auth]</code> and save it to <code>@user.remote_avatar_url</code>. How I can resize this image before saving to db? Or remote image use only original size from source(facebook)?</p>