Silence some notices.
Possibility to bootstrap select with local data.

To avoid initial AJAX call.

    $("#series").remoteChained(
        "#mark",
        "json.php", {
            "bootstrap" : {
                 "":"--",
                 "series-1":"1 series",
                 "series-3":"3 series",
                 "series-5":"5 series",
                 "series-6":"6 series",
                 "series-7":"7 series"
             }
    });
Convert readme to Markdown.
Update header.