Guest Announcement Toggle Mod 1.0

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##        Mod title:  Guest Announcement Toggle 
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##      Mod version:  1.0
##   Works on PunBB:  1.2.8
##     Release date:  09-23-2005
##           Author:  m4dm4n (madman@dreyx.com)
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##      Description:  Adds a simple option in the admin panel -> options for whether or not a guest can see the Announcement. 
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##   Affected files:  admin_options.php
##                    header.php
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##       Affects DB:  Yes
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##       DISCLAIMER:  Please note that "mods" are not officially supported by
##                    PunBB. Installation of this modification is done at your
##                    own risk. Backup your forum database and any and all
##                    applicable files before proceeding.
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