Use to convert values on attribute name to instances of model type.
$.Model.extend("Task",{ init : function(){ this.belongsTo("Person","assignedTo"); } },{})
$.Model.belongsTo(type, name) -> undefined
{String}
The string name of the model.
{optional:String}
The name of the property. Defaults to the shortName of the model.
{undefined}
Use to convert values on attribute name to instances of model type.