Override default logging function with date information. (Updated from Vexed master's comments)

gistfile1.js

(function() {
    var overrideFuncs = ["log", "error", "info", "warn", "trace"];
    for (var i = 0, n = overrideFuncs.length; i < n; ++i) {
        (function(fName) {
            var fn = console[fName];
            console[fName] = function() {
                var time = new Date().toISOString();
                var newArgs = Array.prototype.slice.call(arguments);
                newArgs.unshift(time + " [" + fName.toUpperCase() + "] -");
                fn.apply(this, newArgs);
            }
        })(overrideFuncs[i]);
    }
})();