[ALOY-1148] Update model template code to include Backbone 1.1.2 support code

Per ALOY-1074, if a developer uses Backbone 1.1.2 (rather than the default 0.9.2), he/she must extend the collection definition to account for a breaking change in backbone. Add this to the modelcode.js template file to provide guidance to developers attempting to use this feature.

// For Backbone v1.1.2, uncomment this to override the fetch method
/*
fetch: function(options) {
	options = options ? _.clone(options) : {};
	options.reset = true;
	return Backbone.Collection.prototype.fetch.call(this, options);
}
*/