Improved manager links indication

This one is all up to you (subjective update). It is just an small change, like we did in the "office" section.  You know "a picture is worth thousand words".
Saying that...

![email_add](https://cloud.githubusercontent.com/assets/6611118/3377363/a540ff32-fbde-11e3-9cdb-adc51ab8ae94.png)
![user_add](https://cloud.githubusercontent.com/assets/6611118/3377364/a5682f4e-fbde-11e3-8f20-6cc7c9ab8c9c.png)
![user_delete](https://cloud.githubusercontent.com/assets/6611118/3377367/a7e97fe8-fbde-11e3-853d-ad1e0826a653.png)
![icon-profile](https://cloud.githubusercontent.com/assets/6611118/3377353/82504b36-fbde-11e3-9fd4-5f9be3474c20.png)