Fix download model script to use zip archive

Currently GitHub is not using tarballs as archive for downloading gists
therefore the script was broken as actually a zip archive was being downloaded.

diff --git a/scripts/download_model_from_gist.sh b/scripts/download_model_from_gist.sh
index a1dccf7..89527b7 100755 (executable)
--- a/scripts/download_model_from_gist.sh
+++ b/scripts/download_model_from_gist.sh
@@ -18,7 +18,7 @@ fi
 
 echo "Downloading Caffe model info to $MODEL_DIR ..."
 mkdir -p $MODEL_DIR
-wget https://gist.github.com/$GIST/download -O $MODEL_DIR/gist.tar.gz
-tar xzf $MODEL_DIR/gist.tar.gz --directory=$MODEL_DIR --strip-components=1
-rm $MODEL_DIR/gist.tar.gz
+wget https://gist.github.com/$GIST/download -O $MODEL_DIR/gist.zip
+unzip -j $MODEL_DIR/gist.zip -d $MODEL_DIR
+rm $MODEL_DIR/gist.zip
 echo "Done"