upgrade dojo to 1.8.3 (refs #570)

lib/dijit/_Calendar.js.uncompressed.js

@@ -0,0 +1,22 @@
+define("dijit/_Calendar", [
+	"dojo/_base/kernel", // kernel.deprecated
+	"./Calendar",
+	"./main"	// for exporting dijit.Calendar
+], function(kernel, Calendar, dijit){
+
+	// module:
+	//		dijit/_Calendar
+
+	/*=====
+	return {
+		// summary:
+		//		Deprecated widget, used dijit/Calendar instead.   Will be removed in 2.0.
+	};
+	=====*/
+
+	kernel.deprecated("dijit._Calendar is deprecated", "dijit._Calendar moved to dijit.Calendar", 2.0);
+
+	// dijit._Calendar had an underscore all this time merely because it did
+	// not satisfy dijit's a11y policy.
+	dijit._Calendar = Calendar;
+});