修复本地模式的 table 分页 current 页面失效的问题

components/table/demo/paging.md

@@ -33,7 +33,8 @@ for (let i=0; i<18; i++) {
 }
 
 var pagination = {
-  total: data.length
+  total: data.length,
+  current: 2
 };
 
 React.render(<Table columns={columns} dataSource={data} pagination={pagination} />

components/table/index.jsx

@@ -136,9 +136,13 @@ export default React.createClass({
       this.props.rowSelection.onSelectAll(checked, selectedRows);
     }
   },
-  handlePageChange(current = 1) {
+  handlePageChange(current) {
     let pagination = this.state.pagination || {};
-    pagination.current = current;
+    if (current) {
+      pagination.current = current;
+    } else {
+      pagination.current = pagination.current || 1;
+    }
     this.setState({
       pagination: pagination
     }, this.fetch);