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 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)
Clarify that global import supports only SQL
Fix reading routine column collations: http://sourceforge.net/p/adminer/discussion/960419/thread/3d0925f5/
Fix translation (bug #414)
Centralize setting MySQL charset
MySQL: Use utf8mb4 if available
Use singular caption
Display explanation of default value