Actionbar changes for IITC Mobile

I've hidden the web based tabs, though apparently you can still view them by dragging down near the bottom of the screen.

Instead I've added menu buttons/items to the ActionBar of the application.

Personally I think this looks a LOT better.

I've done limited testing on the Android emulator (Galaxy Nexus) and a physical S2, S4 and Nexus 7.

![2013-05-06 23 04 19](https://f.cloud.github.com/assets/452393/466016/cfddafb0-b64d-11e2-88be-29199b881270.png)
![2013-05-06 23 02 13](https://f.cloud.github.com/assets/452393/466017/d012c90c-b64d-11e2-8281-75b828c9ca74.png)
![2013-05-06 23 02 31](https://f.cloud.github.com/assets/452393/466018/d0456d58-b64d-11e2-9eaa-b22af22fd402.png)
![2013-05-06 23 02 38](https://f.cloud.github.com/assets/452393/466019/d06ecd7e-b64d-11e2-8157-24400ab4d0f7.png)