ons-fetcher: dashboard isn't informative
- When download fails,
download.py
issue a warning. This may be the desired outcome to let the fetcher continues with other datasets - Some of the warnings are expected because the fetcher doesn't handle XLS files, only CSV files
- The dashboard didn't (couldn't) mention that since June 23rd, no new data were downloaded following a change in provider web site. The problem was only detected when a user mentioned it