Minor - fix add course, add session

main/create_course/add_course.php

@@ -180,7 +180,7 @@ if ($course_validation_feature) {
 
 // Course language.
 $languages = api_get_languages();
-if (count($languages['name']) === 1) {
+if (count($languages) === 1) {
     // If there's only one language available, there's no point in asking
     $form->addElement('hidden', 'course_language', $languages['folder'][0]);
 } else {

main/inc/lib/sessionmanager.lib.php

@@ -246,7 +246,7 @@ class SessionManager
                     'visibility' => $visibility,
                     'description' => $description,
                     'show_description' => $showDescription,
-                    'send_subscription_notification' => $sendSubscriptionNotification,
+                    'send_subscription_notification' => (int) $sendSubscriptionNotification,
                 ];
 
                 if (!empty($startDate)) {

main/template/default/create_course/add_course.html.twig

@@ -1,3 +1,4 @@
+{% autoescape false %}
 {% if just_created == 1%}
     <h3>{{ 'JustCreated'|get_lang }} {{ course_title }}</h3>
     <hr />
@@ -51,3 +52,5 @@
     {% endif %}
 </div>
 <div class="clear"></div>
+
+{% endautoescape %}