feature(_game.scss): add overflow enhancement to players names

Before:
![screen shot 2014-09-26 at 9 40 08 pm](https://cloud.githubusercontent.com/assets/5547203/4429763/699eeec8-4600-11e4-8288-a6a66026175a.png)
After:
![screen shot 2014-09-26 at 9 39 45 pm](https://cloud.githubusercontent.com/assets/5547203/4429764/69a2dfce-4600-11e4-93c0-0de9c88df796.png)