This especially also fixes the problem of the copyright symbol being
represented using 0xA9, which is neither ASCII nor the appropriate UTF8
byte sequence for the copyright symbol.
PHPBB3-10881
fix prune users (adding the list of users to the confirmation page)
tried to fix the show/hide trigger in ACP by not using width: auto; (which gets somehow inherited to each other element)
git-svn-id: file:///svn/phpbb/trunk@7455 89ea8834-ac86-4346-8a33-228a782c2dd0