FindMagnum.cmake: use CORRADE_*_LIBRARIES, not *_LIBRARY.
FindMagnum.cmake: use CORRADE_*_LIBRARIES, not *_LIBRARY.

DerThorsten/magnum,ashimidashajia/magnum,MiUishadow/magnum,ashimidashajia/magnum,MiUishadow/magnum,ashimidashajia/magnum,ashimidashajia/magnum,DerThorsten/magnum,MiUishadow/magnum,ashimidashajia/magnum,DerThorsten/magnum,DerThorsten/magnum,MiUishadow/magnum,DerThorsten/magnum,MiUishadow/magnum,MiUishadow/magnum