multi client configuration

Author: ASKozienko

composer.json

@@ -11,13 +11,13 @@
   "license": "MIT",
   "require": {
     "php": "^7.1.3",
-    "queue-interop/queue-interop": "0.7.x-dev",
+    "queue-interop/queue-interop": "^0.7",
     "mongodb/mongodb": "^1.2",
     "ext-mongodb": "^1.3"
   },
   "require-dev": {
     "phpunit/phpunit": "~5.4.0",
-    "queue-interop/queue-spec": "0.6.x-dev",
+    "queue-interop/queue-spec": "^0.6",
     "enqueue/test": "0.9.x-dev",
     "enqueue/null": "0.9.x-dev"
   },