Setup US tiger counties conversion
Try highland for tiger counties import
Fix jsonstream throttling problem
Save json and geojson
Use async instead of highland
Prepare place objects for saving via api
Checkpoint
Process and save nhgis counties
It works
Refactor nhgis import
Fix extractor; remove junk () in nhgis county names
Fix import
Merge similar geojsons
Add delete changes script
Add retries to nhgis import
Add readme for NHGIS import
Write snapshot script
Fix bad us polygons
Union US states and territories
Remove hardcoded username and password