fix tree-select style

components/tree-select/demo/checkable.md

@@ -50,7 +50,7 @@ const Demo = React.createClass({
   render() {
     const tProps = {
       treeData,
-      size: 'small',
+      size: 'large',
       value: this.state.value,
       onChange: this.onChange,
       multiple: true,

style/components/treeSelect.less

@@ -242,10 +242,10 @@
 
       .@{tree-select-prefix-cls}-selection__rendered {
         li {
-          height: 24px;
+          height: 22px;
           .@{tree-select-prefix-cls}-selection__choice__content {
             font-size: 14px;
-            line-height: 24px;
+            line-height: 22px;
           }
         }
       }