[Finishes #69854942] Hide block count for apps that have no requirement

For a bunch of our apps, there's really no value in always showing x blocks / Infinity.  This will hide that for jigsaw, bounce, flappy, and studio.

Old:
![image](https://cloud.githubusercontent.com/assets/1767466/3017372/0003d1d8-df79-11e3-8c26-ec5a1135f974.png)

New:
![image](https://cloud.githubusercontent.com/assets/1767466/3017379/202f2016-df79-11e3-8e29-bb6a88f900a0.png)