Basic event stats sorting implementation

The only noticeable "bug" is that the refresh icon keeps rotating forever since we're just refreshing stats and not the other sections. Can be fixed by simply swiping to another section and back or rotating the screen. Other than that, let me know if you encounter any more bugs. Too tired to think about how to implement sorting by rank and team # at the moment, but suggestions would be great.

![2014-07-17 10 37 58](https://cloud.githubusercontent.com/assets/6787907/3611722/f739ce46-0d9e-11e4-8fa3-86a102e5d2fb.png)
![2014-07-17 10 38 20](https://cloud.githubusercontent.com/assets/6787907/3611723/f739da12-0d9e-11e4-9a72-1ff88b002e11.png)
![2014-07-17 10 38 44](https://cloud.githubusercontent.com/assets/6787907/3611724/f73c3e92-0d9e-11e4-9959-194915b93776.png)
![2014-07-17 10 39 18](https://cloud.githubusercontent.com/assets/6787907/3611721/f738ebfc-0d9e-11e4-8501-db4aefa337db.png)