Move the settings menu over to one menu, while also being Fragment based.

This commit uses the appcompat (android.support.v7 basically) library provided by Google for backporting the ActionBar/Tab to 2.x devices.

Since the library is all set up, all one would need to do is simply read the doc provided in android/phoenix/docs in order to import the project into Eclipse, which is fairly simple as is.

The end result is that the UI now looks like this for the settings: [Preview](http://i.imgur.com/ppS7ozA.png)