Tab control implementation

Tab Control Overview:
![6a38681e-3c56-11e3-84c1-be3b3627c66a](https://f.cloud.github.com/assets/4847382/1407403/558dc19a-3d6c-11e3-9ef0-bb9080807bb4.png)

Implemented features:
-Tab sliding window
-Tab auto resizing
-Tab control menu:
![9d6aca6a-3c56-11e3-8684-ac4a4a1b8664](https://f.cloud.github.com/assets/4847382/1407402/558b3ac4-3d6c-11e3-87cb-9f92bbc0cf76.png)
-Sliding window expansion on screen expansion

UI Styling:
-Restyled tabs
-Restyled library for consistency
![a4785336-3c56-11e3-8707-d6d334a87eea](https://f.cloud.github.com/assets/4847382/1407404/55df6eaa-3d6c-11e3-8648-c5ad18ef1c7a.png)