Use noreferrer in external links
Allow arrays to be ignored in hidden_fields()
Prevent against brute force login attempts from the same IP address
Silence error for unwriteable file
ElasticSearch: table_statuses() also return count of rows
Elasticsearch: Fix table_status()
Revert "Simplify copying of redirected links" - doesn't work with right click + open in new tab

This reverts commit 00da70626d0d09a3f5871db3cfb3d6ae8daea799.
Use rel=noreferrer in WebKit
Add Vietnamese language pack
Sort languages
Update Polish translation
Update French translation
Update French translation
Release 4.1.0
Fix doc comment
Rename variable to reduce confusion
Fix cookie name if the DB name contains dot
Preserve null byte in HTML
Improve French translation (thanks to Dominique Saussereau)
Fix SQL textarea in skin (thanks to DanG)