Add date for 0.15
Add date for 0.15

clembou/rasterio,brendan-ward/rasterio,njwilson23/rasterio,brendan-ward/rasterio,snorfalorpagus/rasterio,clembou/rasterio,youngpm/rasterio,kapadia/rasterio,njwilson23/rasterio,njwilson23/rasterio,johanvdw/rasterio,brendan-ward/rasterio,sgillies/rasterio,youngpm/rasterio,youngpm/rasterio,johanvdw/rasterio,clembou/rasterio,perrygeo/rasterio,kapadia/rasterio,perrygeo/rasterio,perrygeo/rasterio,kapadia/rasterio,johanvdw/rasterio