Space out social icons a bit

difference is subtle but i like it better

![2013-03-16-124338_261x614_scrot](https://f.cloud.github.com/assets/873857/267092/7e77a01c-8e58-11e2-826a-aff4c4fcd48e.png)
![2013-03-16-124346_259x582_scrot](https://f.cloud.github.com/assets/873857/267093/8108a722-8e58-11e2-9f2b-e04e7777a5e4.png)