Improve look for deck overlay.

All measures are based on the "Gadgestan Auctioneer" card and on the size of the original cardBack.
I think we will able to resize the label content with a scaling transformation.

Here are sample result :
![image](https://cloud.githubusercontent.com/assets/7797113/3208210/32534df0-ee22-11e3-9a32-917fca444059.png)
![image](https://cloud.githubusercontent.com/assets/7797113/3208212/3fcefff6-ee22-11e3-8d2e-66c949f6c3d8.png)