Let WCF.Date.Picker respect the users localization
Insert a hidden element representing the date in Y-m-d format

Please remember to assign the elements default value in Y-m-d format. When sending the form, the server will receive the date in the same format.
optimizing date format converter regex
I normally like to make it absolutely unambiguous... A regex is hard to write, but shouldn't be hard to read. Anyway...
Merge pull request #1103 from PhrozenByte/enhancement/DatePickerLocalization

Let WCF.Date.Picker respect the users localization