Fix center columns.

main/css/base.css

@@ -5333,3 +5333,13 @@ i.size-32.icon-new-work{
 #settings .span6:nth-child(2n+1) {
     clear:left
 }
+
+
+#gradebook_list table td {
+    text-align:center;
+    vertical-align:middle;
+}
+
+#gradebook_list table td .badge-group {
+    width: auto;
+}

main/gradebook/lib/fe/gradebooktable.class.php

@@ -28,7 +28,7 @@ class GradebookTable extends SortableTable
      */
     public function GradebookTable($currentcat, $cats = array(), $evals = array(), $links = array(), $addparams = null)
     {
-        parent::__construct('gradebooklist', null, null, (api_is_allowed_to_edit()?1:0));
+        parent::__construct('gradebooklist', null, null, (api_is_allowed_to_edit()?1:0), 20, 'ASC', 'gradebook_list');
         $this->evals_links = array_merge($evals, $links);
         $this->currentcat = $currentcat;
         $this->cats = $cats;