use major versions for testing [skip appveyor]
use major versions for testing [skip appveyor]

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