Fix services index view

Before
![Screenshot from 2013-01-24 20:07:08](https://f.cloud.github.com/assets/1080592/96096/a19fba3e-668f-11e2-99f6-b006698bfeec.png)
After
![Screenshot from 2013-01-24 20:22:18](https://f.cloud.github.com/assets/1080592/96100/b402b6c2-668f-11e2-8acf-a3d6ed395f1b.png)

Because, ```:twitter == "twitter"``` gives ```false```. I believed that this gives ```true```, did it change in recent versions of ruby?