Update servers for Fastmail

Fixes #785

Author: Hugo Osvaldo Barrera

docs/tutorials/fastmail.rst

@@ -10,13 +10,13 @@ the settings to use::
 
     [storage cal]
     type = "caldav"
-    url = "https://caldav.messagingengine.com/"
+    url = "https://caldav.fastmail.com/"
     username = ...
     password = ...
 
     [storage card]
     type = "carddav"
-    url = "https://carddav.messagingengine.com/"
+    url = "https://carddav.fastmail.com/"
     username = ...
     password = ...
 

tests/storage/servers/fastmail/__init__.py

@@ -14,9 +14,9 @@ def inner(collection='test'):
             }
 
             if self.storage_class.fileext == '.ics':
-                args['url'] = 'https://caldav.messagingengine.com/'
+                args['url'] = 'https://caldav.fastmail.com/'
             elif self.storage_class.fileext == '.vcf':
-                args['url'] = 'https://carddav.messagingengine.com/'
+                args['url'] = 'https://carddav.fastmail.com/'
             else:
                 raise RuntimeError()