update sams_app.py to pass test_app_proxy_registered see issue #7

sams_classes/sams_app.py

@@ -25,6 +25,7 @@ class SAMSApp:
         , dict):
       raise DefaultLanguageDictMissing()
     self.__add_urls()
+    self.__add_proxy_urls()
   
   @property
   def module(self):
@@ -48,6 +49,15 @@ class SAMSApp:
         rule = self._generate_url(view.get('url')), endpoint = endpoint,
         view_func = view_func)
   
+  def __add_proxy_urls(self):
+    i = 0
+    for proxy in self.proxies:
+      self.__blueprint.add_url_rule(
+        rule = self._generate_url(proxy.urlRule),
+        endpoint = self.__blueprint.name + '_proxy_' + str(i),
+        view_func = proxy.proxy)
+      i += 1
+  
   @staticmethod
   def _get_attr(thing, attrString):
     try: