Acceptance tests now pull from their own unique database

These databases/collections are cleared after harvest

cms/envs/acceptance.py

@@ -21,7 +21,7 @@ MODULESTORE_OPTIONS = {
     'default_class': 'xmodule.raw_module.RawDescriptor',
     'host': 'localhost',
     'db': 'test_xmodule',
-    'collection': 'acceptance_modulestore',
+    'collection': 'acceptance_modulestore_%s' % uuid4().hex,
     'fs_root': TEST_ROOT / "data",
     'render_template': 'mitxmako.shortcuts.render_to_string',
 }
@@ -45,7 +45,7 @@ CONTENTSTORE = {
     'ENGINE': 'xmodule.contentstore.mongo.MongoContentStore',
     'OPTIONS': {
         'host': 'localhost',
-        'db': 'acceptance_xcontent',
+        'db': 'acceptance_xcontent_%s' % uuid4().hex,
     },
     # allow for additional options that can be keyed on a name, e.g. 'trashcan'
     'ADDITIONAL_OPTIONS': {