Move CYTHON_UNUSED macro up such that included files can use it
Move CYTHON_UNUSED macro up such that included files can use it

da-woods/cython,fabianrost84/cython,fabianrost84/cython,cython/cython,cython/cython,cython/cython,da-woods/cython,fabianrost84/cython,scoder/cython,fabianrost84/cython,fabianrost84/cython,ChristopherHogan/cython,cython/cython,da-woods/cython,ChristopherHogan/cython,ChristopherHogan/cython,scoder/cython,scoder/cython,da-woods/cython,scoder/cython