Two cameras work

Change-Id: Ibd6f0454d5d67c57c4a7735b79a854c0d3a9c59f
diff --git a/person_detection/app.py b/person_detection/app.py
index 5e3a5c7..c188163 100644
--- a/person_detection/app.py
+++ b/person_detection/app.py
@@ -34,7 +34,7 @@
 def video_feed(device):
     """Video streaming route. Put this in the src attribute of an img tag."""
     global args
-    camera = Camera(int(device), args)
+    camera = Camera(device, args)
     return Response(gen(camera),
                     mimetype='multipart/x-mixed-replace; boundary=frame')