What's changed
- Setup: ngb-setup run by hand with --install-to no longer deletes the folder it is given. It only replaces an empty folder or an earlier install of the game, refuses anything else before unpacking, and never follows links when it removes files (#189).
- Building from source: x86-64 builds keep the plain instruction set even when CFLAGS ask for the build machine's (-march=native), which crashed at start (#190).