[auth] Added SimpleAuthorizer.expand_roles
[auth] Added SimpleAuthorizer.expand_roles

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