Merge pull request #65 from emodric/patch-1

Support sebastian/exporter 2.0

Author: matthiasnoback

composer.json

@@ -17,7 +17,7 @@
         "symfony/dependency-injection": "^2.3|^3.0",
         "symfony/config": "^2.3|^3.0",
         "symfony/yaml": "^2.7|^3.0",
-        "sebastian/exporter": "^1.0"
+        "sebastian/exporter": "^1.0|^2.0"
     },
     "require-dev": {
         "phpunit/phpunit": "^4.0|^5.0"