Have tests.html use d3.min.js, thus fixing grunt test
Have tests.html use d3.min.js, thus fixing grunt test

RobertoMalatesta/plottable,iobeam/plottable,alyssaq/plottable,onaio/plottable,palantir/plottable,NextTuesday/plottable,jacqt/plottable,softwords/plottable,jacqt/plottable,RobertoMalatesta/plottable,danmane/plottable,NextTuesday/plottable,palantir/plottable,RobertoMalatesta/plottable,alyssaq/plottable,jacqt/plottable,gdseller/plottable,NextTuesday/plottable,gdseller/plottable,danmane/plottable,softwords/plottable,softwords/plottable,iobeam/plottable,alyssaq/plottable,danmane/plottable,onaio/plottable,palantir/plottable,palantir/plottable,iobeam/plottable,gdseller/plottable,onaio/plottable