TODO List
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   * Figure out better way of handling regexp's (can apache handle them?)
   * Make the KDE greppery run faster
   * Allow option for making GNOME mappings preferred instead of KDE
   * Suppress warnings about inaccessible directories
   * Get make uninstall to work properly - seems to be a general perl bug
   * Feature to treat upper and lower case extensions as the same, and
     to list both upper and lower cases of each extension for each mimetype