Download version of mnist.pkl.gz compatible with python 3

Author: lamblin

data/download.sh

@@ -1,5 +1,6 @@
 #!/bin/sh
 
 wget -c http://www.iro.umontreal.ca/~lisa/deep/data/mnist/mnist.pkl.gz
+wget -c http://www.iro.umontreal.ca/~lisa/deep/data/mnist/mnist_py3k.pkl.gz
 wget -c http://www.iro.umontreal.ca/~lisa/deep/data/Nottingham.zip && unzip -u Nottingham.zip
 wget -c http://www.iro.umontreal.ca/~lisa/deep/midi.zip && unzip -u midi.zip -d ../code && echo "extracted Modified Python MIDI package (GPL)"