Issue with printing in Web AppBuilder 2.1

[joshkrochmal]

Thanks for developing this widget; super useful for us. I recently ran into an issue printing after upgrading to Web AppBuilder 2.1, and after working with ESRI support we isolated it to an issue with LocalLayer. When printing using layers configured in the widget, the points render fine in the map but the symbols fail to display in the legend. It seems that in v2.1, the web map as json has changed slightly which seems to effect the output.