wubloader/sheetsync
Mike Lang 48593e2b06 database, sheetsync: Add worksheet name column 'sheet_name'
This tells us which sheet a row came from
(so we don't need to scan every sheet to find it if we're trying to do
lookups in that direction).

It is also needed in order to tag the videos with the Day number.
..
sheetsync database, sheetsync: Add worksheet name column 'sheet_name'
Dockerfile sheet-sync: Some fixes
setup.py sheet-sync: Some fixes