Fixed ColorAT::gray() returning ColorT (#151)
Fixed ColorAT::gray() returning ColorT (#151)

2666hz/Cinder,morbozoo/sonyHeadphones,2666hz/Cinder,morbozoo/sonyHeadphones,sosolimited/Cinder,sosolimited/Cinder,sosolimited/Cinder,morbozoo/sonyHeadphones,2666hz/Cinder,morbozoo/sonyHeadphones,2666hz/Cinder,sosolimited/Cinder