Improve training performance - batch-norm using cuDNN.

AlexeyAB

2018-03-19 537d135feba179636e9bbfe296e078d51f59914c

 src/rnn_layer.h

@@ -5,6 +5,7 @@
#include "activations.h"
#include "layer.h"
#include "network.h"
#define USET

layer make_rnn_layer(int batch, int inputs, int hidden, int outputs, int steps, ACTIVATION activation, int batch_normalize, int log);