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

Author: clue

composer.json

@@ -15,7 +15,7 @@
     },
     "require": {
     	"php": ">=5.3",
-        "react/event-loop": "0.4.*|0.3.*",
+        "react/event-loop": "^1.0 || ^0.5 || ^0.4 || ^0.3",
         "react/promise": "~2.1|~1.2",
         "react/promise-timer": "~1.0"
     },