Minor - Format code, update docs, update tpls, remove comment

CONTRIBUTING.md

@@ -84,7 +84,7 @@ root@docker$ cd /var/www
 root@docker$ rm -rf html
 root@docker$ git clone --single-branch -b 1.10.0-beta https://github.com/chamilo/chamilo-lms.git html
 root@docker$ cd html
-root@docker$ chmod -R 0777 app/ vendor/ main/lang/ main/default_course_document/images/ web/
+root@docker$ chmod -R 0777 var/ vendor/ main/lang/ public/
 root@docker$ vim /etc/php5/apache2/php.ini
 ```
 Look for timezone and modify it to the best timezone that suits you:

main/admin/settings.lib.php

@@ -1096,7 +1096,6 @@ function searchImageFilter($image)
 function addEditTemplate()
 {
     $em = Database::getManager();
-    // Initialize the object.
     $id = isset($_GET['id']) ? (int) $_GET['id'] : 0;
 
     /** @var SystemTemplate $template */

src/ThemeBundle/Resources/views/FlashMessage/render.html.twig

@@ -7,14 +7,16 @@
 {% for type in sonata_flashmessages_types() %}
     {% set domain = domain is defined ? domain : null %}
     {% for message in sonata_flashmessages_get(type, domain) %}
-        {% if type != 'no_layout' %}
         <div class="alert alert-{{ type|sonata_status_class }} alert-dismissable">
-            <button type="button" class="close" data-dismiss="alert" aria-hidden="true">&times;</button>
+            <button
+                    type="button"
+                    class="close"
+                    data-dismiss="alert"
+                    aria-hidden="true"
+                    aria-label="{{ 'message_close'|trans({}, 'SonataCoreBundle') }}"
+            >&times;</button>
             {{ message|raw }}
         </div>
-        {% else %}
-            {{ message|raw }}
-        {% endif %}
     {% endfor %}
 {% endfor %}
 

src/ThemeBundle/Resources/views/News/slider.html.twig

@@ -9,7 +9,7 @@
         {% endif %}
     {% endset %}
     {% set content %}
-   {{ macro.box_header("SystemAnnouncements" | trans, buttons) }}
+    {{ macro.box_header("System announcements" | trans, buttons) }}
     <div id="carousel-announcement" class="carousel slide" data-ride="carousel">
         <ol class="carousel-indicators">
             {% for announcement in announcements %}