Merge pull request #1 from AnrDaemon/fix-composer-deps

Reinstitute the phpunit/phpunit dependency the right way.

Author: uwetews

composer.json

@@ -34,5 +34,8 @@
     "branch-alias": {
       "dev-master": "3.1.x-dev"
     }
+  },
+  "require": {
+    "phpunit/phpunit": "^6.4.1 || ^4.6.6"
   }
 }