Widget factory: Added support for deep extending multiple option hashes on init.

tests/unit/core/core.js

@@ -65,17 +65,31 @@ test('widget factory, merge multiple option arguments', function() {
 				disabled: false,
 				option1: "value1",
 				option2: "value2",
-				option3: "value3"
+				option3: "value3",
+				option4: {
+					option4a: "valuea",
+					option4b: "valueb"
+				}
 			});
 		}
 	});
 	$("#main > :first").widgetTest({
 		option1: "valuex",
 		option2: "valuex",
-		option3: "value3"
+		option3: "value3",
+		option4: {
+			option4a: "valuex"
+		}
 	}, {
 		option1: "value1",
-		option2: "value2"
+		option2: "value2",
+		option4: {
+			option4b: "valueb"
+		}
+	}, {
+		option4: {
+			option4a: "valuea"
+		}
 	});
 });
 

ui/ui.core.js

@@ -255,7 +255,7 @@ $.widget = function(name, prototype) {
 
 		// allow multiple hashes to be passed on init
 		options = !isMethodCall && args.length
-			? $.extend.apply(null, arguments)
+			? $.extend.apply(null, [true, options].concat(args))
 			: options;
 
 		// prevent calls to internal methods