Default sorting doesn't work

[Belephor92]

Hi! In your Overview example you have a default ascending sorting for the (arrow down is on building column)
To expect is that it would go down from A999...A998 etc. But the row is Ascending from A1...A2 etc..
I reproduced it by following code for a column
{
title: "updatedAt",
key: "updatedAt",
type: "date",
dateType: "datetime",
format: "dd-MM-yyyy HH:mm",
align: "center",
resizable: "true",
sortable: "true",
sortType: "desc"
}

Would be great to enable default sorting if sortType is set!
Great work by the way :)

[jiahengaa]

please update to v1.4.0