use correct timestamp format for time series plotting

app/components/time-series-plot.js

@@ -48,10 +48,9 @@ export default Component.extend({
         }
         const $this = this.$();
         // flot data points are tuples/arrays [x,y], graphs are arrays of these
-        // converts unix timestamps to javascript timestamps (*1000)
         // use Ember.get because it would work with Ember.Object and plain JS
         const plotData = this.get('timeSeries.series')
-            .map((valueObj) => [get(valueObj, 'timestamp')*1000, get(valueObj, 'value')]);
+            .map((valueObj) => [get(valueObj, 'timestamp'), get(valueObj, 'value')]);
         this.debug('plotData', plotData);
         // wrap in additional array since flot can handle multiple graphs at once, we only need one
         const plot = $this.plot([plotData], this.get('options')).data('plot');