upgrade menu

package.json

@@ -45,7 +45,7 @@
     "rc-dropdown": "~1.2.0",
     "rc-form-validation": "~2.4.7",
     "rc-input-number": "~2.0.1",
-    "rc-menu": "~4.3.0",
+    "rc-menu": "~4.3.1",
     "rc-notification": "~1.1.0",
     "rc-pagination": "~1.1.0",
     "rc-progress": "~1.0.0",

style/components/menu.less

@@ -106,7 +106,7 @@
       top: 11px;
     }
 
-    &-opened {
+    &-open {
       > .@{menuPrefixCls} {
         display: block;
       }