Fix button positions in the new layout

After merging the new layout, buttons were seen like this:

![oc_admin_user_manage1](https://cloud.githubusercontent.com/assets/231068/3216489/52a9814e-efd2-11e3-96ff-5b92fd113812.png)

They will be like this:

![oc_admin_user_manage1](https://cloud.githubusercontent.com/assets/231068/3216571/eb982a30-efd3-11e3-9ed9-64b62a34740b.png)

However, it would be nice to align them to the right. Any help is appreciated :)