Setting datepicker.date from outside of the date picker dialog is ignored about app-datepicker

[motss]

@FLamparski It's because the date is designed to just read data from the selected date from the datepicker. I will work on this to allow user to change the date from the external so that the result will reflect on the datepicker.

[motss]

@FLamparski Please check the demo and see if the new implementation is what you have been looking for.

[motss]

@FLamparski I've update the demo page with the newly added inputDate property which can allow you to change the date without selecting any date on the datepicker. Just type the date at the `paper-input right below the datepicker and see the result.

[motss]

@FLamparski Closing this and feel free to reopen if the issue still persists.