Add new Rows on the fly, without touching the database.
1.0.3 * dont fail if a key is not present
1.0.2 * better support for connected models
1.0.1 * bugfixes and improved comments
1.0 * init
More Informations are located in german at my blog http://www.interaktionsdesigner.de/2011/02/11/cakephp-expandable-behavior/