System settings cleanup

The settings in the Toolbars menu have been moved under the System header so that specific settings are more easily found. Tested and working.

![2013-03-30 21 42 55](https://f.cloud.github.com/assets/1753736/320993/0bf29656-9983-11e2-9475-1045df6205ed.png)
![2013-03-30 21 43 01](https://f.cloud.github.com/assets/1753736/320991/0bc8808c-9983-11e2-8d9e-b496bf1bc4ad.png)
![2013-03-30 21 43 10](https://f.cloud.github.com/assets/1753736/320992/0bde7e3c-9983-11e2-9695-e04936839f63.png)