Pass queryConfig down to Dygraphs so it can make label decisions

ui/src/data_explorer/components/Visualization.js

@@ -102,10 +102,11 @@ const Visualization = React.createClass({
     const statements = queryConfigs.map(query => {
       const text =
         query.rawText || buildInfluxQLQuery(query.range || timeRange, query)
-      return {text, id: query.id}
+      return {text, id: query.id, queryConfig: query}
     })
+
     const queries = statements.filter(s => s.text !== null).map(s => {
-      return {host: [proxy], text: s.text, id: s.id}
+      return {host: [proxy], text: s.text, id: s.id, queryConfig: s.queryConfig}
     })
 
     return (

ui/src/shared/components/Dygraph.js

@@ -271,11 +271,12 @@ export default class Dygraph extends Component {
     const y = _.get(axes, ['y', 'bounds'], [null, null])
     const y2 = _.get(axes, ['y2', 'bounds'], undefined)
     const timeSeries = this.getTimeSeries()
+    const ylabel = this.getLabel('y')
 
     const updateOptions = {
       labels,
       file: timeSeries,
-      ylabel: this.getLabel('y'),
+      ylabel,
       axes: {
         y: {
           valueRange: getRange(timeSeries, y, ruleValues),