Merge pull request #43 from RobinRadic/master

Improved version constraints

Author: lesstif

composer.json

@@ -8,7 +8,7 @@
         "netresearch/jsonmapper": "~0.11",
         "monolog/monolog": "~1.12",
         "vlucas/phpdotenv": "~2.0",
-        "symfony/var-dumper": "2.8.*|3.0.*"
+        "symfony/var-dumper": "~2.8|~3.0"
     },
     "require-dev": {
         "phpunit/phpunit": "~4.4",