Add UIImage view categories for scaling, resizing and scores.

Signed-off-by: Aron Cedercrantz <aron@cedercrantz.se>
Update question header view backgrounds.

Signed-off-by: Aron Cedercrantz <aron@cedercrantz.se>
Use new score image category.

Signed-off-by: Aron Cedercrantz <aron@cedercrantz.se>
Remove some extra chars from a few strings.

Signed-off-by: Aron Cedercrantz <aron@cedercrantz.se>
Refactor the OPFQuestionHeaderView.

- One step closer to the mockups.

Signed-off-by: Aron Cedercrantz <aron@cedercrantz.se>