'Points to Geojson' not reading images without coordinate system

[eseigel]

If your image doesn't have a coordinate system, rasterio can't read it and will spit out an error similar to "AtrributeEerror: ‘NoneType’ object has no attribute ‘to_authority". This is the only option in the 'points_to_geojson' tutorial, and the only fix Haley's been able to figure out to get around this error is to go into QGIS instead.

[k034b363]

Just commenting here so I don't forget: I think the solution is just going to be adding an if statement to check if the crs is not None and then if it is just setting it to None for the new geojson.

[HaleySchuhl]

Same logic needs to be applied within analyze.coverage and I'll add it now to analyze.spectral