OO-3802: add the save button in the template of the course's config.

src/main/java/org/olat/course/config/ui/_content/course_options.html

@@ -2,5 +2,8 @@
 	<legend>$r.translate("details.options.title")</legend>
 	$r.render("glossary")
 	$r.render("sharedfolder")
+	#if($r.available("buttons"))
+		$r.render("buttons")
+	#end
 </fieldset>