#324 hard coded text must be translated

in file claroline\document\document.php you will find hard coded text "A file with the same name already exists." in line 727 and "You can not move an element inside itself." in line 731.
this should be translated.
$dialogBox->error( 'A file with the same name already exists.' );
$dialogBox->error( 'You can not move an element inside itself.' );

[Frederic Minne]

fixed on the trunk (will be released in claroline 1.12)