Fix some plugins for use without rcmail class

Aleksander Machniak

2015-06-19 1c861df079de9f6f4f3cdbe5c49b3ef8dd124eed

 plugins/redundant_attachments/redundant_attachments.php

@@ -63,7 +63,7 @@
            return;
        }

        $rcmail = rcmail::get_instance();
        $rcmail = rcube::get_instance();

        // load configuration
        $this->load_config();