decreasing reliance on the account page

After I got my first assignment approved, I wasn't sure what to do to start my second. After some minutes of confusion, I re-read the account page and realized I needed to run exercism fetch. I think this popover makes that process quicker/easier. there could be a better solution..

![screen shot 2013-07-31 at 10 53 02 pm](https://f.cloud.github.com/assets/2482470/891731/6593fb84-fa66-11e2-9bea-51d0d87457f9.png)