Updated dependencies

Hi, 

i updated [all dependencies](https://www.versioneye.com/user/projects/52d691ceec13752fc500026c) in package.json;

 Was there any particular reason that the Mocha used Jade `0.26.7`, which was released on *Jun.25th 2012* and not 1.x ? 

I also add dependency badge for project - it helps to keep eye on dependencies and users can check additional metadata after they click on badge;

Btw, i noticed that you have quite many open-source projects. How are you keeping all of these projects update-to-date?