Precompile datepicker i18n files for each language.

Not an optimal solution, because it uses files from our own repository instead of the bundle, but found no other solution for now.

app/assets/javascripts-jquery-ui/datepicker-cs.js

@@ -0,0 +1,37 @@
+/* Czech initialisation for the jQuery UI date picker plugin. */
+/* Written by Tomas Muller (tomas@tomas-muller.net). */
+( 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.cs = {
+	closeText: "Zavřít",
+	prevText: "<Dříve",
+	nextText: "Později>",
+	currentText: "Nyní",
+	monthNames: [ "leden","únor","březen","duben","květen","červen",
+	"červenec","srpen","září","říjen","listopad","prosinec" ],
+	monthNamesShort: [ "led","úno","bře","dub","kvě","čer",
+	"čvc","srp","zář","říj","lis","pro" ],
+	dayNames: [ "neděle", "pondělí", "úterý", "středa", "čtvrtek", "pátek", "sobota" ],
+	dayNamesShort: [ "ne", "po", "út", "st", "čt", "pá", "so" ],
+	dayNamesMin: [ "ne","po","út","st","čt","pá","so" ],
+	weekHeader: "Týd",
+	dateFormat: "dd.mm.yy",
+	firstDay: 1,
+	isRTL: false,
+	showMonthAfterYear: false,
+	yearSuffix: "" };
+datepicker.setDefaults( datepicker.regional.cs );
+
+return datepicker.regional.cs;
+
+} ) );