Normalize date formats

[ZenCocoon]

The format should match iso8601 standard, therefore YYYY-mm-dd for the dates and YYYY-mm-ddTHH:mm:ssz for the datetimes.

At least one place that need the fix: http://developers.bookingsync.com/reference/endpoints/bookings/#search-bookings

[toan12a]

you can used moment.js to convert and format date time :)