Forward compatibility with stable EventLoop 1.0 and 0.5

Author: clue

composer.json

@@ -15,7 +15,7 @@
     },
     "require": {
         "php": ">=5.3",
-        "react/event-loop": "~0.4.0|~0.3.0",
+        "react/event-loop": "^1.0 || ^0.5 || ^0.4 || ^0.3",
         "react/datagram": "~1.0"
     },
     "require-dev": {