Add logging for time-out errors

[bryanmgee]

Sometimes the API hiccups and times out on specific DOIs. Want to log those, retry once, and log again if unsuccessful.

[bryanmgee]

Timeout error on DOI 10.18738/T8/PEAPF6: HTTPSConnectionPool(host='dataverse.tdl.org', port=443): Read timed out. (read timeout=5)