Small fixes

app/corpora/events.py

@@ -2,7 +2,7 @@ from flask import current_app, request
 from flask_login import current_user
 from socket import gaierror
 from . import cqi
-from .. import db, logger, socketio
+from .. import db, socketio
 from ..decorators import socketio_login_required
 from ..events import connected_sessions
 from ..models import Corpus, User