small ical bug fix

icalexport.py

@@ -56,7 +56,7 @@ def ical_semester(semester):
 @app.route('/internal/ical/all')
 @calperm
 def ical_all():
-	return export_lectures(query('SELECT lectures.* FROM lectures lectures.visible = 1', semester),'videoag_all.ics')
+	return export_lectures(query('SELECT lectures.* FROM lectures lectures.visible = 1'),'videoag_all.ics')
 
 @app.route('/internal/ical/course/<course>')
 @calperm