Merge pull request #65 from silvano-a/dependency-update

Update twig dependency constraints

Author: niels-nijens

composer.json

@@ -20,7 +20,7 @@
         "symfony/form": "^2.8 | ^3.0",
         "symfony/framework-bundle": "^2.8 | ^3.0",
         "symfony/validator": "^2.8 | ^3.0",
-        "twig/twig": "^1.24"
+        "twig/twig": "^1.24 | ^2.0"
     },
     "require-dev": {
         "phpunit/phpunit": "^4.8",