fixed CvBoost::predict (Sometimes sample_data became bad because the buffer with its values was deallocated early).
fixed CvBoost::predict
(Sometimes sample_data became bad because the buffer with its values was deallocated early).

opencv/opencv,apavlenko/opencv,opencv/opencv,opencv/opencv,opencv/opencv,opencv/opencv,opencv/opencv,opencv/opencv,opencv/opencv,opencv/opencv,apavlenko/opencv,apavlenko/opencv,apavlenko/opencv,apavlenko/opencv,apavlenko/opencv,opencv/opencv