Change name of commentattachment folder to commentfiles

Signed-off-by: Richard Mansfield <richardm@catalyst.net.nz>

htdocs/artefact/comment/lang/en.utf8/artefact.comment.php

@@ -46,7 +46,7 @@ $string['commentupdated'] = 'Comment updated';
 $string['editcomment'] = 'Edit Comment';
 $string['editcommentdescription'] = 'You can update your comments if they are less than %d minutes old and have had no newer replies added.  After this time you may still be able to delete your comments and add new ones.';
 $string['feedback'] = 'Feedback';
-$string['feedbackattachdirname'] = 'commentattachments';
+$string['feedbackattachdirname'] = 'commentfiles';
 $string['feedbackattachdirdesc'] = 'Files attached to comments on your portfolio';
 $string['feedbackattachmessage'] = 'The attached file(s) have been added to your %s folder';
 $string['feedbackchangedtoprivate'] = 'Feedback changed to private';