upgrade dojo to 1.8.3 (refs #570)

lib/dojo/request/default.js.uncompressed.js

@@ -0,0 +1,32 @@
+define("dojo/request/default", [
+	'exports',
+	'require',
+	'../has'
+], function(exports, require, has){
+	var defId = has('config-requestProvider'),
+		platformId;
+
+	if( 1 ){
+		platformId = './xhr';
+	}else if( 0 ){
+		platformId = './node';
+	/* TODO:
+	}else if( 0 ){
+		platformId = './rhino';
+   */
+	}
+
+	if(!defId){
+		defId = platformId;
+	}
+
+	exports.getPlatformDefaultId = function(){
+		return platformId;
+	};
+
+	exports.load = function(id, parentRequire, loaded, config){
+		require([id == 'platform' ? platformId : defId], function(provider){
+			loaded(provider);
+		});
+	};
+});