Add deprecated alias clear_mailbox()

Aleksander Machniak

2012-10-25 fd49626c2b34e03b84aff8aba9b0993b4b1bedf9

 program/include/rcube_imap.php

@@ -4036,6 +4036,11 @@
        return $this->delete_folder($folder);
    }

    function clear_mailbox($folder = null)
    {
        return $this->clear_folder($folder);
    }

    public function mailbox_exists($folder, $subscription=false)
    {
        return $this->folder_exists($folder, $subscription);