Ability to stop tracking all messages

[nmalcolm]

All tracked messages are kept until the user stops tracking them. These can quickly pile up and you can end up with hundreds of pages going back years. There should be a button on the tracking page which clears all read messages.

[Stefan-MyBB]

Perhaps we could also prune read messages after perhaps a few months or so.

[Starpaul20]

Done.

[xykul]

line 1428 error
Parse error: syntax error, unexpected '{' in C:\wamp\www\alpha18\private.php on line 1428

$db->update_query("privatemessages", $sql_array, "receipt='2' AND folder!='3' AND status!='0' AND fromid="{$mybb->user['uid']});

{$mybb->user['uid']}); to .$mybb->user['uid']);