Fixed memory leaks. And fixes for Web-camera and IP-camera.

AlexeyAB

2018-05-04 89354d0a0ce6fbb22ff262658045cdb8796ff6fd

 src/cost_layer.h

@@ -1,7 +1,7 @@
#ifndef COST_LAYER_H
#define COST_LAYER_H
#include "params.h"
#include "layer.h"
#include "network.h"

typedef layer cost_layer;