Fixes for small objects. And fixes of densenet201_yolo.cfg, resnet50_yolo.c...

AlexeyAB

2018-03-08 a6c51e3b758aee7fd3a6f1d37daa8dcad4891e52

 src/data.c

@@ -326,7 +326,7 @@
        id = boxes[i].id;

      // not detect small objects
      if ((w < 0.01 || h < 0.01)) continue;
      if ((w < 0.001 || h < 0.001)) { printf("small w = %f, h = %f \n", w, h); continue; }

        truth[i*5+0] = x;
        truth[i*5+1] = y;