Universal Header

Adds the new G5Header engine and styles a new sub header bar. The G5 Header may or may not be shrunk down in height... https://www.pivotaltracker.com/story/show/82755500

**Closed...**
![image](https://cloud.githubusercontent.com/assets/486358/5363379/7f0d37d2-7f90-11e4-8f10-f452f4807ee1.png)

**Open...**
![image](https://cloud.githubusercontent.com/assets/486358/5363387/9761544e-7f90-11e4-8e4d-308527eb3299.png)