gmail and gitg icon

![gmail](https://cloud.githubusercontent.com/assets/5596229/4434442/d9826d8e-4716-11e4-983f-be5aca20ea16.png)

![gitg](https://cloud.githubusercontent.com/assets/5596229/4434477/63f3386c-4718-11e4-8f46-146db89b8b7b.png)