MDL-41379 core_outcome: added some CSS to the course outcome table to make it display nice

grade/edit/outcome/course_form.html

@@ -2,7 +2,7 @@
 
 <form action="course.php" method="post">
 <div>
-<table style="margin-left:auto;margin-right:auto">
+<table class="courseoutcomes">
     <tr>
         <td>
             <label for="removeoutcomes"><?php print_string('outcomescourse', 'grades'); ?></label>

theme/base/style/grade.css

@@ -65,4 +65,14 @@
 #page-grade-grading-pick .singlebutton,
 .path-grade-report-user h2.main {
     clear:both;
-}
+}
+
+/** pre-2.6 outcomes **/
+#page-grade-edit-outcome-course .courseoutcomes {
+    margin-left: auto;
+    margin-right: auto;
+    width: 100%;
+}
+#page-grade-edit-outcome-course .courseoutcomes td {
+    text-align:center;
+} 

theme/bootstrapbase/less/moodle/forms.less

@@ -326,6 +326,14 @@ div.backup-section + form,
 #page-admin-grade-edit-scale-edit.dir-rtl .error input#id_name {
     margin-right: 170px;
 }
+#page-grade-edit-outcome-course .courseoutcomes {
+    margin-left: auto;
+    margin-right: auto;
+    width: 100%;
+}
+#page-grade-edit-outcome-course .courseoutcomes td {
+    text-align:center;
+}
 /* Install Process' text fields Forms, should always be justified to the left */
 #installform #id_wwwroot,
 #installform #id_dirroot,