cryo-warden

var log = function () {
    if (false && window.DEVMODE) {
        return console.log.apply(console, arguments);
    }
};

var mapArrayChanges =
ko.utils.mapArrayChanges = function (sourceObs, targetObs, fn, handlerState) {
    return sourceObs.subscribe(function (events) {
        if (handlerState.busy) { return; }