Merge pull request #52 from clue-labs/legacy-unbuffered

Update Stream dependency to work around SEGFAULT in legacy PHP < 5.4.28 and PHP < 5.5.12

Author: WyriHaximus

composer.json

@@ -7,7 +7,7 @@
         "php": ">=5.3.0",
         "evenement/evenement": "^3.0 || ^2.0 || ^1.0",
         "react/event-loop": "^1.0 || ^0.5 || ^0.4 || ^0.3",
-        "react/stream": "^1.0 || ^0.7.2"
+        "react/stream": "^1.0 || ^0.7.6"
     },
     "require-dev": {
         "phpunit/phpunit": "^5.0 || ^4.8.10",