Add some more variables to the unittest config

These worked accidentally before (python2 doesn't complain if you
compare incompatible types) but under py3 this blows up spectacularly

Signed-off-by: Adrian Tschira <nota@notafile.com>

tests/utils.py

@@ -59,6 +59,10 @@ def setup_test_homeserver(name="test", datastore=None, config=None, **kargs):
         config.email_enable_notifs = False
         config.block_non_admin_invites = False
         config.federation_domain_whitelist = None
+        config.federation_rc_reject_limit = 10
+        config.federation_rc_sleep_limit = 10
+        config.federation_rc_concurrent = 10
+        config.filter_timeline_limit = 5000
         config.user_directory_search_all_users = False
 
         # disable user directory updates, because they get done in the