tabs in VM and VMT view

![vm-tab](https://cloud.githubusercontent.com/assets/1265430/5522585/618b9ff2-89bb-11e4-9b72-bb053c5b9a37.png)
![vmt-tab](https://cloud.githubusercontent.com/assets/1265430/5522588/641b6a86-89bb-11e4-8dc6-45ed6970d809.png)

@tbartynski, @Nuanda please take a look