rename from pylib/rbbz/rbbz/diffs.py
rename to pylib/mozreview/mozreview/diffs.py

--- a/pylib/rbbz/rbbz/extension.py
+++ b/pylib/rbbz/rbbz/extension.py
@@ -14,32 +14,32 @@ from reviewboard.reviews.signals import 
     reply_publishing,
     review_publishing,
 )
 
 from mozreview.bugzilla.client import Bugzilla
 from mozreview.bugzilla.errors import (
     bugzilla_to_publish_errors,
 )
+from mozreview.diffs import build_plaintext_review
 from mozreview.errors import (
     ParentShipItError,
 )
 from mozreview.extra_data import (
     is_parent,
     is_pushed,
     REVIEW_FLAG_KEY
 )
 from mozreview.models import (
     get_bugzilla_api_key,
 )
 from mozreview.rb_utils import (
     get_obj_url,
 )
 from rbbz.auth import BugzillaBackend
-from rbbz.diffs import build_plaintext_review
 from rbbz.middleware import CorsHeaderMiddleware
 from rbbz.resources import bugzilla_cookie_login_resource
 
 
 logger = logging.getLogger(__name__)
 
 
 class BugzillaExtension(Extension):