Top align QA in card browser

I know this is Tim's territory :wink:, but it was much quicker to fix it than starting a discussion: I think the card browser is more readable if the text is not center aligned.

Before:
![align-top](https://cloud.githubusercontent.com/assets/527708/2688803/cee565b8-c2cb-11e3-89cd-2988a991fe25.png)

After:
![align-center](https://cloud.githubusercontent.com/assets/527708/2688802/c9e0e7b8-c2cb-11e3-9311-592eb4d9e418.png)

What do y'all think?