Very basic FLUID-3674 model relay test

gistfile1.js

    fluid.defaults("fluid.tests.changer", {
        gradeNames: ["fluid.littleComponent", "autoInit"],
        invokers: {
            change: {
                changePath: "{arguments}.0",
                value: "{arguments.1"
            }
        }
    });
    
    fluid.defaults("fluid.tests.fluid3674head", {
        gradeNames: ["fluid.standardRelayComponent", "fluid.tests.changer", "fluid.tests.changeRecorder", "autoInit"],
        model: { // test forward reference as well as transactional initialisation
            innerModel: "{child}.model.nested1"
        },
        modelListeners: {
            "innerModel": "{that}.record({change}.path, {change}.value, {change}.oldValue)"
        },
        components: {
            child: {
                type: "fluid.tests.changer",
                options: {
                    gradeNames: ["fluid.standardRelayComponent"],
                    model: {
                        nested1: {
                            nested2: "thing"
                        }
                    }
                }
            }
        }
    });
    
    jqUnit.test("FLUID-3674 basic model relay test", function () {
        var that = fluid.tests.fluid3674head();
        var expected = {
            innerModel: {
                nested2: "thing"
            }
        };
        jqUnit.assertDeepEq("Model successfully resolved on init", expected, that.model);
        var expected2 = [{
            path: ["innerModel"], oldValue: undefined, value: {nested2: "thing"}
        }];
        jqUnit.assertDeepEq("Registered initial change", expected2, that.fireRecord);
    });