upgrade Plugin for DokuWiki

All documentation for this plugin can be found at
http://www.dokuwiki.org/plugin:upgrade

If you install this plugin manually, make sure it is installed in
lib/plugins/upgrade/ - if the folder is called different it
will not work!

Please refer to http://www.dokuwiki.org/plugins for additional info
on how to install plugins in DokuWiki.

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Copyright (C) Andreas Gohr <andi@splitbrain.org>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

See the COPYING file in your DokuWiki folder for details