detailTemplate and downloadCSV not working together

[IsaaacD]

When detailTemplate is added and you try to use the downloadCSV method, an exception is thrown on the first column because it's not hidden and it does not have either a title or field attribute. This should be a simple fix to add these attributes or exclude this column when a detailTemplate is present.

[IsaaacD]

I was able to skirt the issue with these changes

I could potentially create a PR but i'm just currently modifying a local copy for a project I'm working on

[IsaaacD]

Found a better solution that can be implemented to declared columns too (for action buttons and the like)

[atatanasov]

This is fixed in the new development version. You can find the new stable build at https://github.com/atatanasov/gijgo/tree/1.9/dist