Added achievement holders display and total achievement to profile

I have added the total achievement display to the profile page, as shown below.

![screen shot 2014-12-30 at 12 46 58 pm](https://cloud.githubusercontent.com/assets/5274310/5574933/4e1eed6c-9022-11e4-8e62-d2fcef3cf052.png)

Furthermore, I have also added the list of achievement holders display to the achievement page. At the moment, I am using a pop-up dialog box (previously, a table, but that didn't work as well as a pop-up), but this can be changed later.

![screen shot 2014-12-30 at 12 46 44 pm](https://cloud.githubusercontent.com/assets/5274310/5574945/910f5562-9022-11e4-8ce7-11d63d223d66.png)