From Symfony 2.1 to 2.2

composer.json

diff --git a/composer.json b/composer.json

index 8f905d7..c2d7588 100644
--- a/composer.json
+++ b/composer.json
@@ -6,18 +6,18 @@
     },
     "require": {
         "php": ">=5.3.3",
-        "symfony/symfony": "2.1.*",
-        "doctrine/orm": ">=2.2.3,=2.2.3",
+        "doctrine/doctrine-bundle": "1.2.*",
         "twig/extensions": "1.0.*",
         "symfony/assetic-bundle": "2.1.*",
-        "symfony/swiftmailer-bundle": "2.1.*",
-        "symfony/monolog-bundle": "2.1.*",
-        "sensio/distribution-bundle": "2.1.*",
-        "sensio/framework-extra-bundle": "2.1.*",
-        "sensio/generator-bundle": "2.1.*",
-        "jms/security-extra-bundle": "1.2.*",
-        "jms/di-extra-bundle": "1.1.*"
+        "symfony/swiftmailer-bundle": "2.2.*",
+        "symfony/monolog-bundle": "2.2.*",
+        "sensio/distribution-bundle": "2.2.*",
+        "sensio/framework-extra-bundle": "2.2.*",
+        "sensio/generator-bundle": "2.2.*",
+        "jms/security-extra-bundle": "1.4.*",
+        "jms/di-extra-bundle": "1.3.*"
     },
     "scripts": {
         "post-install-cmd": [
@@ -36,9 +36,12 @@
     "config": {
         "bin-dir": "bin"
     },
-    "minimum-stability": "dev",
+    "minimum-stability": "alpha",
     "extra": {
         "symfony-app-dir": "app",
-        "symfony-web-dir": "web"
+        "symfony-web-dir": "web",
+        "branch-alias": {
+            "dev-master": "2.2-dev"
+        }
     }
 }