version 4 (#24)

Author: dmouse

composer.json

@@ -15,8 +15,8 @@
     "require": {
         "composer-plugin-api": "^1.0",
         "composer/installers": "^1.2",
-        "symfony/yaml": "~2.7|~3.0",
-        "symfony/finder": "~2.7|~3.0"
+        "symfony/yaml": "~3.0|^4.4",
+        "symfony/finder": "~3.0|^4.4"
     },
     "minimum-stability": "dev",
     "prefer-stable": true,