fetch correct version of jose

Author: Minishlink

composer.json

@@ -17,7 +17,7 @@
     "kriswallsmith/buzz": ">=0.6",
     "mdanter/ecc": "^0.3.0",
     "lib-openssl": "*",
-    "spomky-labs/jose": "^0.4.6"
+    "spomky-labs/jose": "2.0.x-dev"
   },
   "require-dev": {
     "phpunit/phpunit": "4.8.*"