Merge pull request #2492 from nasa/y-axis-label-fix

[Plot] Y axis label is not displayed when editing #2487

src/plugins/plot/res/templates/mct-plot.html

@@ -117,7 +117,7 @@
 
             <div class="gl-plot-label gl-plot-y-label"
                 ng-class="{'icon-gear': (yKeyOptions.length > 1 && series.length === 1)}"
-                ng-bind="yAxisLabel">
+                >{{yAxis.get('label')}}
             </div>
 
             <select  class="gl-plot-y-label__select local-controls--hidden"

src/plugins/plot/src/plot/MCTPlotController.js

@@ -526,6 +526,7 @@ define([
 
         if (yAxisObject) {
             series.emit('change:yKey', yAxisObject.key);
+            this.config.yAxis.set('label', label);
             this.$scope.yAxisLabel = label;
         }
     };