Bumping utils version, php to 5.5

Author: philipsorst

composer.json

@@ -18,12 +18,12 @@
         }
     ],
     "require": {
-        "php": ">=5.4",
+        "php": ">=5.5",
         "symfony/finder": "~2.6",
         "symfony/form": "~2.6",
         "symfony/framework-bundle": "~2.6",
         "symfony/twig-bundle": "~2.6",
-        "dontdrinkandroot/utils": "0.3.1",
+        "dontdrinkandroot/utils": "0.4.*",
         "cpliakas/git-wrapper": "~1.0",
         "league/commonmark": "0.9.0",
         "webuni/commonmark-table-extension": "0.1.0"