Animate color for score meter
Animate color for score meter

Now the color of the score meter is animated as well. This way the meter
is filled up while the color changes, too. This commit closes #44.

Signed-off-by: Konrad Reiche <4ff0213f56e2082fcd8c882d04c546881c579ce4@gmail.com>

platzhirsch/metadata-census