add class on insert and delete btn

Author: AllenFang

src/toolbar/ToolBar.js

@@ -123,11 +123,11 @@ class ToolBar extends React.Component{
   render(){
     var modalClassName = "bs-table-modal-sm"+new Date().getTime();
     var insertBtn = this.props.enableInsert?
-          <button type="button" onClick={this.props.onAddRowBegin} className="btn btn-info" data-toggle="modal" data-target={'.'+modalClassName}>
+          <button type="button" onClick={this.props.onAddRowBegin} className="btn btn-info react-bs-table-add-btn" data-toggle="modal" data-target={'.'+modalClassName}>
             <i className="glyphicon glyphicon-plus"></i> New</button>:null;
 
     var deleteBtn = this.props.enableDelete?
-          <button type="button" className="btn btn-warning" data-toggle="tooltip" data-placement="right" title="Drop selected row"
+          <button type="button" className="btn btn-warning react-bs-table-del-btn" data-toggle="tooltip" data-placement="right" title="Drop selected row"
             onClick={this.handleDropRowBtnClick.bind(this)}>
             <i className="glyphicon glyphicon-trash"></i> Delete
           </button>:null;