Where is the source code for the velocity:nightwatch-framework? The advertised GitHub repository doesn’t exist 
That package was abandoned due to architecture and design disagreements among Velocity team members. Please see http://starrynight.meteor.com/ and it’s repository https://github.com/awatson1978/starrynight for all future Nightwatch/Meteor development. Sorry for the confusion! This is going to provide a much more stable architecture moving forward, and is a necessary change for us to implement an isomorphic testing API.