Fix avatar image load on profile page

### from 
![screen shot 2014-10-29 at 12 25 30](https://cloud.githubusercontent.com/assets/1492162/4825598/c8789dca-5f66-11e4-8b45-5379d6ea1c88.png)

### to
![screen shot 2014-10-29 at 12 25 51](https://cloud.githubusercontent.com/assets/1492162/4825602/ce404258-5f66-11e4-82da-f27ae1659bde.png)
file doesn't need to require `common/modules/discussion/api`