announcements module hooks - hooks created by the announcements module
 - These hooks allow modules to display announcements on the bombplates dashboard

hook_announcements
  Parameters:
    None
  Returns:
    array(
      array(
        'announcement' => 'Human-readable announcement text',
        'preview' => 'Shortened human-readable announcement',
        'priority' => 0|1|2|3 - lower numbers will be sorted to the top
        'viewed' => boolean - has this announcement been viewed by a user yet
        'timestamp' => time - when this announcement was posted
      )
    )
  Description: