Use table for pending CLA requests

:fork_and_knife: To be consistent with the UI throughout the manage profile view use a table for pending CLA requests instead of a ul.

![screen shot 2014-07-24 at 3 25 18 pm](https://cloud.githubusercontent.com/assets/316507/3693519/6921dcaa-1368-11e4-8ad1-50008973d430.png)