updated composer.json: added oauth lib as requirement

Author: vimishor

composer.json

@@ -15,7 +15,8 @@
     ],
     "require": {
         "php": ">=5.3",
-        "kriswallsmith/buzz": "0.10"
+        "kriswallsmith/buzz": "0.10",
+        "jacobkiers/oauth": "1.0.10"
     },
     "require-dev": {
         "phpunit/phpunit": "~3.7",