I am trying to do something which I think should be simple enough. I am using a `datepickerfield` in ST2.1 and trying to set the start date. I know I can set the year like so:

```
{
    xtype: 'datepickerfield',
    picker: {
        yearFrom: newDate().getFullYear(),
        yearTo: 1930
    }
}

```

but I also want to be able to set the start day and month. Is this possible? The above produces a result like 'January 1, 2013' and that is not what I want.