Merge branch 'master' of github.com:mitsuhiko/flask

flask/app.py

@@ -1468,7 +1468,7 @@ class Flask(_PackageBoundObject):
 
         .. versionchanged:: 0.9
            This can now also be called without a request object when the
-           UR adapter is created for the application context.
+           URL adapter is created for the application context.
         """
         if request is not None:
             return self.url_map.bind_to_environ(request.environ,

flask/helpers.py

@@ -305,7 +305,9 @@ def url_for(endpoint, **values):
 
     :param endpoint: the endpoint of the URL (name of the function)
     :param values: the variable arguments of the URL rule
-    :param _external: if set to `True`, an absolute URL is generated.
+    :param _external: if set to `True`, an absolute URL is generated. Server
+      address can be changed via `SERVER_NAME` configuration variable which
+      defaults to `localhost`.
     :param _anchor: if provided this is added as anchor to the URL.
     :param _method: if provided this explicitly specifies an HTTP method.
     """