Update doctrine/dbal require-dev to 2.2 branch

composer.json

@@ -37,7 +37,7 @@
         "symfony/twig-bridge": "2.1.*",
         "symfony/validator": "2.1.*",
         "twig/twig": ">=1.8.0,<2.0-dev",
-        "doctrine/dbal": "2.1.*",
+        "doctrine/dbal": "2.2.*",
         "swiftmailer/swiftmailer": "4.2.*"
     },
     "suggest": {

composer.lock

 {
-    "hash": "bd90711641b078681e124d35baf3291c",
+    "hash": "e9bbfe0e73bf6da4acfe01fbada86650",
     "packages": [
         {
             "package": "pimple/pimple",
@@ -29,7 +29,7 @@
         },
         {
             "package": "doctrine/dbal",
-            "version": "2.1.7"
+            "version": "2.2.2"
         },
         {
             "package": "monolog/monolog",