New download URL
Bump nw version in tests to 0.10.0
Revert "New download URL", the old one still works and still has the newest archives. The new one only has 0.8.1+.

This reverts commit 50699b4712952f37c0166d04b382a8dcd23c39c0.
Add support for subfolders in nw archives after 0.10.0
Use 0.9.2 in tests, 0.10.0 is clearly broken