Changed class to class_id

AlexeyAB

2018-03-01 35a66b73a25ab93f2a3ceb85993d4801240046a4

 src/network.h

@@ -64,6 +64,7 @@
    #ifdef GPU
    float **input_gpu;
    float **truth_gpu;
   int wait_stream;
    #endif
} network;