Logging is inadequate to enable successful diagnostic/troubleshooting

[mbaumann-broad]

Current Behavior

Nothing is being written to the drs_downloader.log, even when there are errors in the download (such as unresolvable DRS URIs)

Desired Behavior

To enable effective support, including diagnosing /troubleshooting problems, the drs_downloader.log file must contain:

• All the information output to the user/console
• Date/timestamps for all log entries
• Stack traces for all errors that occur

Found In

drs_downloader v0.1.5-rc.11 on running on macOS

[matthewpeterkort]

Looking over this again one of the the main issues is that the drs_downloader.log file should log everything and currently it just mirrors the normal logging options. So if the user doesn't specify the -v flag there aren't many logs to begin with.

EDIT: addressed/tested in 20ddbbc