Update PHP and symfony version

composer.json

@@ -13,7 +13,7 @@
     },
     "autoload": {
         "psr-4": {
-            "Chamilo\\": "src/Chamilo/",
+            "Chamilo\\": "src/",
             "Application\\": "app/"
         },
         "classmap": [
@@ -85,12 +85,50 @@
         "twig/extensions": "^1.5",
         "white-october/pagerfanta-bundle": "^1.1",
 
+
+
+        "sonata-project/admin-bundle": "3.x-dev",
+        "sonata-project/block-bundle": "~3.0",
+        "sonata-project/cache": "1.x-dev",
+        "sonata-project/cache-bundle": "~2.1@dev",
+        "sonata-project/classification-bundle": "~3.0",
+
+        "sonata-project/timeline-bundle" : "~3.0",
+
+        "sonata-project/core-bundle": "~3.0",
+        "sonata-project/datagrid-bundle": "^2.2",
+        "sonata-project/doctrine-extensions": "~1@dev",
+        "sonata-project/doctrine-orm-admin-bundle": "~3.0",
+        "sonata-project/easy-extends-bundle": "~2.1@dev",
+        "sonata-project/exporter": "~1",
+        "sonata-project/formatter-bundle": "~3.0",
+        "sonata-project/intl-bundle": "~2.4.0",
+        "sonata-project/media-bundle": "~3.0",
+        "sonata-project/notification-bundle": "~3.0",
+        "sonata-project/page-bundle": "dev-master",
+        "sonata-project/seo-bundle": "~2.0",
+        "sonata-project/sonata-composer": "dev-master",
+        "sonata-project/user-bundle": "4.x-dev",
+
+        "stephpy/timeline-bundle": "~2.0",
+        "stof/doctrine-extensions-bundle": "~1.0",
+        "sunra/php-simple-html-dom-parser": "~1.5.0",
+
+        "symfony/annotations-pack": "^1.0",
+
+        "friendsofsymfony/jsrouting-bundle": "~2.0",
+        "friendsofsymfony/rest-bundle": "~2.0",
+        "gedmo/doctrine-extensions": "~2.4",
+        "gregwar/captcha-bundle": "^2.0",
+        "helios-ag/fm-elfinder-bundle": "~6.0",
+
+
+
         "doctrine/data-fixtures": "~1.0@dev",
 
         "knplabs/gaufrette": "~0.3",
 
-        "gedmo/doctrine-extensions": "~2.3",
-        "sonata-project/user-bundle": "~4.0",
+
 
         "michelf/php-markdown": "~1.7",
         "sabre/vobject": "~3.1",
@@ -116,7 +154,6 @@
         "monolog/monolog": "~1.0",
         "ircmaxell/password-compat": "~1.0.4",
 
-
         "patchwork/utf8": "~1.3",
         "ddeboer/data-import": "@stable",
         "phpoffice/phpexcel": "~1.8",