Updates migrations

To get the app working again I ran resetdb, let it crash in initdb,
then ran the migration, then re-ran initdb

bookwyrm/routine_book_tasks.py

@@ -1,8 +1,8 @@
 ''' Routine tasks for keeping your library tidy '''
 from datetime import timedelta
 from django.utils import timezone
-from fedireads import books_manager
-from fedireads import models
+from bookwyrm import books_manager
+from bookwyrm import models
 
 def sync_book_data():
     ''' update books with any changes to their canonical source '''