KO Validation

    Here we see many cool KO components - such as applying bindings to a section of the page and
    it's descendents. For ref:
        https://github.com/Knockout-Contrib/Knockout-Validation
        http://jsfiddle.net/KHFn8/5424/

    Rules:
    https://github.com/Knockout-Contrib/Knockout-Validation/wiki/Native-Rules