Change warning in dw_data_to_chart to stop

[munichrocker]

Should be an complete error, as the main point of running this function is to upload data. If it doesn't do that, the script is probably missing a vital part of it's purpose.

A warning is just displayed but does not stop the script, as I would expect it from an error that large.

So I'm thinking about changing the line 64 in dw_data_to_chart:
warning(paste0("There has been an error in the upload process. Statuscode of the response: ", httr::status_code(r)), immediate. = TRUE)
to:
stop(paste0("There has been an error in the upload process. Statuscode of the response: ", httr::status_code(r)), call. = TRUE)

[munichrocker]

Same question for dw_publish_chart, dw_edit_chart, dw_create_folder

[munichrocker]

Included in ac78d2a