Add CI status checks

[Bartvds]

I think you might want to add travis-ci here: if I do a fresh git clone and npm install and run npm test it fails.

[Bartvds]

If you want to have npm test also run some failing demo tests that show errors but won't fail the whole build you might also like https://npmjs.org/package/grunt-continue (there are of course alternate ways to get the same effect).

[bgold09]

It appears that the folks at Palantir use Circle CI so we would likely need to use that as well. Unless we can use Travis and/or Appveyor, which should be easy to set up.