Last serie may be is larger than the first

Thank you for the plugin.

This change is to take care that If there's more than one serie with differents lengths, show all the data for the last serie.

I also have this in my code:
exportUrl, 
                	{
	                	input: this.getCSV(),
	                    filename: this.title.text,.
Because I want to download the csv with the name of the serie.