Forward compatibility with upcoming EventLoop v1.0 and v0.5

Author: clue

composer.json

@@ -13,7 +13,7 @@
     "require": {
         "php": ">=5.3",
         "react/child-process": "^0.5 || ^0.4 || ^0.3",
-        "react/event-loop": "~0.4.0|~0.3.0",
+        "react/event-loop": "^1.0 || ^0.5 || ^0.4 || ^0.3",
         "react/promise": "~2.0|~1.0"
     },
     "require-dev": {