Core: Added radio/checkbox to delegate click-event

Reverts the accidental change from d319a0da35,
where these event handlers were dropped.

Closes #1126

src/core.js

@@ -349,7 +349,7 @@ $.extend( $.validator, {
 					"focusin focusout keyup", delegate)
 				// Support: Chrome, oldIE
 				// "select" is provided as event.target when clicking a option
-				.validateDelegate("select, option", "click", delegate);
+				.validateDelegate("select, option, [type='radio'], [type='checkbox']", "click", delegate);
 
 			if ( this.settings.invalidHandler ) {
 				$( this.currentForm ).bind( "invalid-form.validate", this.settings.invalidHandler );

test/test.js

@@ -364,6 +364,37 @@ asyncTest("validation triggered on radio/checkbox when using keyboard", function
 	}, 50);
 });
 
+asyncTest("validation triggered on radio/checkbox when using mouseclick", function() {
+    expect( 1 );
+	var input, i, events, triggeredEvents = 0;
+
+	$("#form").validate({
+		onclick: function() {
+			triggeredEvents++;
+		}
+	});
+
+	events = [
+		$.Event("click")
+	];
+
+	input = $("#form :radio:first");
+	for(i = 0; i < events.length; i++) {
+		input.trigger(events[i]);
+	}
+
+	input = $("#form :checkbox:first");
+	for(i = 0; i < events.length; i++) {
+		input.trigger(events[i]);
+	}
+
+	setTimeout(function() {
+		// assert all event handlers fired
+		equal(2, triggeredEvents);
+		start();
+	}, 50);
+});
+
 test( "showErrors()", function() {
 	expect( 4 );
 	var errorLabel = $( "#errorFirstname" ).hide(),