Migrates stream to 2.9

Signed-off-by: Oliver Brunsmann <[email protected]>

Author: obrunsmann

composer.json

@@ -14,7 +14,7 @@
         "php": ">=5.5.0",
         "illuminate/support": ">=4.2",
         "illuminate/database": ">=4.2",
-        "get-stream/stream": "~2.2"
+        "get-stream/stream": "^2.9"
     },
     "require-dev": {
         "phpunit/phpunit": "~4.0",
@@ -37,4 +37,3 @@
         }
     }
 }
-