OPAL-2510: Moved actions column and button dropdown into checkbox column...

... alert and added icons

![image](https://f.cloud.github.com/assets/2565497/2294764/a58bffd6-a086-11e3-85af-5c1448682f6f.png)

![image](https://f.cloud.github.com/assets/2565497/2294768/b2032154-a086-11e3-952d-6b06f14897c5.png)

![image](https://f.cloud.github.com/assets/2565497/2294770/bb00854e-a086-11e3-8b1c-1687599188f0.png)