A feed marked "Active" in preview gives the option to "Make Active" in edit feeds


![image](https://user-images.githubusercontent.com/25589089/36687150-ba626668-1af6-11e8-871d-8644cd29db74.png)


![image](https://user-images.githubusercontent.com/25589089/36687142-af175be2-1af6-11e8-9d5f-cf64931a23b4.png)


![image](https://user-images.githubusercontent.com/25589089/36687120-9f6e4f20-1af6-11e8-8646-3c05c7165091.png)
