Mailbox-inspired design

I have been _in love_ with the Mailbox mac app. It is simple and beautiful and is making me reconsider my hatred for email. The only problem is that it makes me hate every other app I use regularly, including this notifications app.

This is a pretty sincere form of flattery. I didn't set out to copy Mailbox. In fact, I started by just removing the backgrounds and simplifying some of the existing styles.

I have deployed it to staging and would love feedback: https://gh-notifications-staging.herokuapp.com

## Old

![screen shot 2014-09-14 at 4 24 54 pm](https://cloud.githubusercontent.com/assets/173/4265371/3d24502a-3c4d-11e4-9270-93442410f5a6.png)

## New

![screen shot 2014-09-14 at 4 20 12 pm](https://cloud.githubusercontent.com/assets/173/4265359/9ba86858-3c4c-11e4-883b-bf48736f81a1.png)

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Related: Here is the very first mockup I did for the notifications app, which was a mobile app that would pull in multiple sources. It had very simple black & white theme like this. So in my defense, this design is close to the original concept.

![gh-notifications-early-mockup](https://cloud.githubusercontent.com/assets/173/4265382/62e588aa-3c4e-11e4-89ab-e4c6bb1ed3cc.png)