[auth] Use cubes_root to find auth files.
[auth] Use cubes_root to find auth files.

zejn/cubes,pombredanne/cubes,pombredanne/cubes,jell0720/cubes,she11c0de/cubes,noyeitan/cubes,jell0720/cubes,noyeitan/cubes,she11c0de/cubes,ubreddy/cubes,pombredanne/cubes,noyeitan/cubes,ubreddy/cubes,ubreddy/cubes,jell0720/cubes,she11c0de/cubes,cesarmarinhorj/cubes,zejn/cubes,zejn/cubes,cesarmarinhorj/cubes,cesarmarinhorj/cubes