Add bylines back onto non-contributor tag pages

I don't know why this field wasn't being requested ... 

Before:

![screen shot 2014-11-21 at 11 17 53](https://cloud.githubusercontent.com/assets/1001642/5141661/27bb4416-7170-11e4-9d99-f1e27792d327.png)

After:

![screen shot 2014-11-21 at 11 17 59](https://cloud.githubusercontent.com/assets/1001642/5141664/2ba68f72-7170-11e4-8c03-0f8e5adb7762.png)