update sams_app.py to pass test_sams_app.py and fix issue #21

sams_classes/sams_app.py

@@ -47,7 +47,8 @@ class SAMSApp:
       view_func = SAMSApp._get_attr(self.module, view['function'])
       self.__blueprint.add_url_rule(
         rule = self._generate_url(urlPart = view.get('url')), endpoint = endpoint,
-        view_func = view_func)
+        view_func = view_func,
+        methods = view.get('methods', ['GET', 'HEAD', 'OPTIONS']))
   
   def __add_proxy_urls(self):
     i = 0