Made space for config menu in top bar of gui on small screens

On smaller screens such as iPad the config menu disappears off the right of the screen. This is because of the removal of the donate button from the original interface. I have just made an empty space where the button used to be to correct it.
Before:
![img_0005](https://cloud.githubusercontent.com/assets/7379452/2808461/1b06d898-cd2e-11e3-92ac-b9064aa794bb.PNG)
After:
![img_0006](https://cloud.githubusercontent.com/assets/7379452/2808462/32b2058a-cd2e-11e3-824c-adf41d869950.PNG)