'callback' parameter added

[mhkoca]

I use AngularJS and when I use this picker, HTML element value changes but the scope doesn't effect. So I added callback parameter and send a function which set scope's value with this parameter.

Maybe other people would need this function.

[Stefanius67]

It might be better to pass the callback function with the configuration instead of a new additional parameter.
(ensures backward compatibility; Users that don't need the callback, havn't to worry about the parameter ...)

    oDate = new dtsel.DTS('input[name="dtStartEvent"]',  {
        showTime: true,
        dateFormat: "dd.mm.yyyy",
        funcCallback: function(value) { /* do something with the value */ }
    });