Fix .edd-loading icon positioning

before:

![screen shot 2013-07-18 at 3 47 35 pm](https://f.cloud.github.com/assets/52581/816958/d0e8f186-ef5e-11e2-8d41-96b3b15de240.png)

after: 
![screen shot 2013-07-18 at 3 48 34 pm](https://f.cloud.github.com/assets/52581/816961/d8d05a2e-ef5e-11e2-9123-221fa582baa5.png)