New summary header

Based on the initial designs of @Juice10, I adapted them for our current layout.

![](http://s3itch.paperplanes.de/Travis_CI__Free_Hosted_Continuous_Integration_Platform_for_the_Open_Source_Community_20140508_163607_20140508_163609.jpg)

Definitely lots of room for tuning, but I wanted to get something new out :smile: