Reorganize bit the UI

1. Fix minor overlapping of title and item list 
2. Togglable FPS limit and auto-switchable between 30 to 240 
3. Put all expandable options in P2 of graphics configuration screen

![ui](https://f.cloud.github.com/assets/3000282/506270/ddf5ea20-bd48-11e2-8895-65f06239289b.jpg)