Fixed memory leaks for Yolo: train, test

AlexeyAB

2018-05-23 ec68838342b42541776607b0c14e40fb89f7e3d8

 cfg/yolov3.cfg

@@ -610,7 +610,7 @@
classes=80
num=9
jitter=.3
ignore_thresh = .5
ignore_thresh = .7
truth_thresh = 1
random=1

@@ -696,7 +696,7 @@
classes=80
num=9
jitter=.3
ignore_thresh = .5
ignore_thresh = .7
truth_thresh = 1
random=1

@@ -783,7 +783,7 @@
classes=80
num=9
jitter=.3
ignore_thresh = .5
ignore_thresh = .7
truth_thresh = 1
random=1