Merge branch 'hotfix/36'

Close #36

Author: weierophinney

composer.json

@@ -14,7 +14,7 @@
     },
     "require": {
         "php": "^5.5 || ^7.0",
-        "zendframework/zend-eventmanager": "^2.6|^3.0",
+        "zendframework/zend-eventmanager": "^2.6 || ^3.0",
         "squizlabs/php_codesniffer": "^2.5"
     },
     "require-dev": {