remove cuda/convnet/*.o during make clean

lib/makefile

@@ -9,7 +9,7 @@ NVFLAGS := -O3 $(NVFLAGS)
 all: libccv.a ../samples/image-net-2012-vgg-d.sqlite3
 
 clean:
-	rm -f *.o 3rdparty/sha1/*.o 3rdparty/sfmt/*.o 3rdparty/kissfft/*.o 3rdparty/dsfmt/*.o 3rdparty/sqlite3/*.o cuda/*.o libccv.a
+	rm -f *.o 3rdparty/sha1/*.o 3rdparty/sfmt/*.o 3rdparty/kissfft/*.o 3rdparty/dsfmt/*.o 3rdparty/sqlite3/*.o cuda/*.o cuda/convnet/*.o libccv.a
 
 libccv.a: ccv_cache.o ccv_memory.o 3rdparty/sha1/sha1.o 3rdparty/kissfft/kiss_fft.o 3rdparty/kissfft/kiss_fftnd.o 3rdparty/kissfft/kiss_fftr.o 3rdparty/kissfft/kiss_fftndr.o 3rdparty/kissfft/kissf_fft.o 3rdparty/kissfft/kissf_fftnd.o 3rdparty/kissfft/kissf_fftr.o 3rdparty/kissfft/kissf_fftndr.o 3rdparty/dsfmt/dSFMT.o 3rdparty/sfmt/SFMT.o 3rdparty/sqlite3/sqlite3.o ccv_io.o ccv_numeric.o ccv_algebra.o ccv_util.o ccv_basic.o ccv_image_processing.o ccv_resample.o ccv_transform.o ccv_classic.o ccv_daisy.o ccv_sift.o ccv_bbf.o ccv_mser.o ccv_swt.o ccv_dpm.o ccv_tld.o ccv_ferns.o ccv_icf.o ccv_scd.o ccv_convnet.o ccv_output.o $(CUDA_OBJS)
 	$(AR) rcs $@ $^