only run test with >= gdal 2.x - refs https://github.com/naturalatlas/node-gdal/issues/181#issuecomment-245141953
only run test with >= gdal 2.x - refs https://github.com/naturalatlas/node-gdal/issues/181#issuecomment-245141953

naturalatlas/node-gdal,jdesboeufs/node-gdal,nbuchanan/node-gdal,nbuchanan/node-gdal,nbuchanan/node-gdal,naturalatlas/node-gdal,nbuchanan/node-gdal,naturalatlas/node-gdal,jdesboeufs/node-gdal,jdesboeufs/node-gdal,jdesboeufs/node-gdal,naturalatlas/node-gdal