Update models.List methods to pass keyword arguments to API methods

Resolves #1987

tweepy/models.py

@@ -186,36 +186,40 @@ def parse_list(cls, api, json_list, result_set=None):
         return results
 
     def update(self, **kwargs):
-        return self._api.update_list(self.slug, **kwargs)
+        return self._api.update_list(slug=self.slug, **kwargs)
 
     def destroy(self):
-        return self._api.destroy_list(self.slug)
+        return self._api.destroy_list(slug=self.slug)
 
     def timeline(self, **kwargs):
         return self._api.list_timeline(
-            self.user.screen_name, self.slug, **kwargs
+            owner_screen_name=self.user.screen_name, slug=self.slug, **kwargs
         )
 
     def add_member(self, id):
-        return self._api.add_list_member(self.slug, id)
+        return self._api.add_list_member(slug=self.slug, user_id=id)
 
     def remove_member(self, id):
-        return self._api.remove_list_member(self.slug, id)
+        return self._api.remove_list_member(slug=self.slug, user_id=id)
 
     def members(self, **kwargs):
         return self._api.get_list_members(
-            self.user.screen_name, self.slug, **kwargs
+            owner_screen_name=self.user.screen_name, slug=self.slug, **kwargs
         )
 
     def subscribe(self):
-        return self._api.subscribe_list(self.user.screen_name, self.slug)
+        return self._api.subscribe_list(
+            owner_screen_name=self.user.screen_name, slug=self.slug
+        )
 
     def unsubscribe(self):
-        return self._api.unsubscribe_list(self.user.screen_name, self.slug)
+        return self._api.unsubscribe_list(
+            owner_screen_name=self.user.screen_name, slug=self.slug
+        )
 
     def subscribers(self, **kwargs):
         return self._api.get_list_subscribers(
-            self.user.screen_name, self.slug, **kwargs
+            owner_screen_name=self.user.screen_name, slug=self.slug, **kwargs
         )