Add icons and website URL for Tanner Philosophy library.

Closes #658 

### 10414967

#### Before
![10414967-before](https://cloud.githubusercontent.com/assets/96776/3820930/c8ba7180-1d00-11e4-9562-c8beb7baf4ca.png)

#### After
![10414967-after](https://cloud.githubusercontent.com/assets/96776/3820931/ce72e62a-1d00-11e4-8204-e922f06ffa77.png)