Added drop event to search input because if we drag and then drop text into the textbox it is not firing the search event

src/bootstrap-table.js

@@ -856,7 +856,7 @@
 
             this.$toolbar.append(html.join(''));
             $search = this.$toolbar.find('.search input');
-            $search.off('keyup').on('keyup', function (event) {
+            $search.off('keyup drop').on('keyup drop', function (event) {
                 clearTimeout(timeoutId); // doesn't matter if it's 0
                 timeoutId = setTimeout(function () {
                     that.onSearch(event);