Fix a bug when loading pure gray image as texture (Jpeg 1 gray channel). Fix a typo error.
Fix a bug when loading pure gray image as texture (Jpeg 1 gray channel).
Fix a typo error.

Nazg-Gul/libmv,petertsoi/libmv,petertsoi/libmv,rgkoo/libmv-blender,Nazg-Gul/libmv,keir/libmv,libmv/libmv,Nazg-Gul/libmv,petertsoi/libmv,Nazg-Gul/libmv,rgkoo/libmv-blender,SoylentGraham/libmv,petertsoi/libmv,rgkoo/libmv-blender,SoylentGraham/libmv,keir/libmv,libmv/libmv,Nazg-Gul/libmv,libmv/libmv,SoylentGraham/libmv,libmv/libmv,SoylentGraham/libmv,keir/libmv,keir/libmv,rgkoo/libmv-blender,rgkoo/libmv-blender