Add support for SRID parameter.
Merge pull request #8 from azavea/feature/upload-support-srid

Add support for SRID parameter.
Add script to download missions geojson and convert it to a shapefile
Remove unused certificate argument
Comments and use requests parameterization
Add README
Change column ordering and document column names
Merge pull request #10 from flibbertigibbet/feature/geojson-to-shp

Add script to download missions geojson and convert it to a shapefile