[build] also trying make -j4 to the Windows build. Set an option on the Appveyor side that will hopefully not build twice on pull requests
[build] also trying make -j4 to the Windows build. Set an option on the Appveyor side that will hopefully not build twice on pull requests

openvenues/libpostal,openvenues/libpostal,openvenues/libpostal,openvenues/libpostal