adding server.js to gitignore so it doesn't change for others
creating new compare branch for compare metrics specific implementations
adding grunt task to start server
adding new class of service to controlers
adding d3, nvd3, and nvd3 angular directive
have example d3 working
fixing package.json and adding d3 chart for prototype.
adding express for heroku
adding express web server and related dependancies
adding static for express to pick up the index.html
removing the d3 prototype chart
adding procfile to have app run correctly on heroku
deleting to remake the Procfile
adding profile to heroku
deleting so can make new and push to heroku
adding Procfile for node to run