* application/pdf=pdf<br>
     * application/x-fictionbook+xml=fb2<br>
     * application/e-pub+zip=epub<br>
     * application/x-ibooks+zip=ibooks<br>
     * text/plain=txt<br>
     * application/rtf=rtf<br>
     * application/vnd.ms-htmlhelp=chm<br>
     * application/zip=zip<br>
     * application/x-7z-comressed=7z<br>
     * application/x-bzip=bz<br>
     * application/x-bzip2=bz2<br>

    public static final String LABELS_facet_filetype_txt = "{labels.facet_filetype_txt}";

    /** The key of the message: Rich Text Format */
    public static final String LABELS_facet_filetype_rtf = "{labels.facet_filetype_rtf}";

    /** The key of the message: Compiled HTML Help */
    public static final String LABELS_facet_filetype_chm = "{labels.facet_filetype_chm}";

    /** The key of the message: ZIP Archive */