Group related projects (auto_branch=true) and more compact view for they

Before:
![before](https://cloud.githubusercontent.com/assets/48872/5085274/2e2fe30c-6f21-11e4-9e82-3d37875a8bb0.png)

After:
![after](https://cloud.githubusercontent.com/assets/48872/5085273/2d5e8686-6f21-11e4-933b-5fd5d7ad2e91.png)