Removed Chai from plottable.js file
Removed Chai from plottable.js file

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