Merge pull request #47 from Neradoc/allow-no-route

Allow no route to be defined for only serving static files

Author: anecdata

adafruit_httpserver/route.py

@@ -106,7 +106,7 @@ def route_func(request, my_parameter):
                 my_parameter == "123" # True
         """
         if not self._routes:
-            raise ValueError("No routes added")
+            return None
 
         found_route, _route = False, None