Fix rasterio to version 0.36.0 now that 1.0 is out
Fix rasterio to version 0.36.0 now that 1.0 is out

There are some incompatibilities between the two.  Until I can go to NHM
to upgrade their setup, I'll pin it to the old version.

ricardog/raster-project,ricardog/raster-project,ricardog/raster-project,ricardog/raster-project,ricardog/raster-project