Datepicker: Add German localization

ui/i18n/datepicker-de-AT.js

@@ -0,0 +1,38 @@
+/* German/Austrian initialisation for the jQuery UI date picker plugin. */
+/* Based on the de initialisation. */
+
+( function( factory ) {
+	if ( typeof define === "function" && define.amd ) {
+
+		// AMD. Register as an anonymous module.
+		define( [ "../widgets/datepicker" ], factory );
+	} else {
+
+		// Browser globals
+		factory( jQuery.datepicker );
+	}
+}( function( datepicker ) {
+
+datepicker.regional[ "de-AT" ] = {
+	closeText: "Schließen",
+	prevText: "<Zurück",
+	nextText: "Vor>",
+	currentText: "Heute",
+	monthNames: [ "Jänner","Februar","März","April","Mai","Juni",
+	"Juli","August","September","Oktober","November","Dezember" ],
+	monthNamesShort: [ "Jän","Feb","Mär","Apr","Mai","Jun",
+	"Jul","Aug","Sep","Okt","Nov","Dez" ],
+	dayNames: [ "Sonntag","Montag","Dienstag","Mittwoch","Donnerstag","Freitag","Samstag" ],
+	dayNamesShort: [ "So","Mo","Di","Mi","Do","Fr","Sa" ],
+	dayNamesMin: [ "So","Mo","Di","Mi","Do","Fr","Sa" ],
+	weekHeader: "KW",
+	dateFormat: "dd.mm.yy",
+	firstDay: 1,
+	isRTL: false,
+	showMonthAfterYear: false,
+	yearSuffix: "" };
+datepicker.setDefaults( datepicker.regional[ "de-AT" ] );
+
+return datepicker.regional[ "de-AT" ];
+
+} ) );