Move memorydb from test to roundup/test

.. to allow regression-testing in tracker instances without copying code.

Author: schlatterbeck

CHANGES.txt

@@ -101,6 +101,8 @@ Features:
 - issue2551117 - Add example systemd config
 - Allow admin to configure language used for stemming in xapian
   indexer. (John Rouillard request by Nagy Gabor)
+- Move memorydb from test to roundup/test to allow regression-testing in
+  tracker instances without copying code.
 
 
 2020-07-13 2.0.0

roundup/test/__init__.py

@@ -3,7 +3,7 @@
 from roundup import hyperdb
 
 from .db_test_base import DBTest, ROTest, SchemaTest, config, setupSchema
-from . import memorydb
+from roundup.test import memorydb
 
 class memorydbOpener:
     module = memorydb