Add protected $url variable
Add protected $url variable

An scrutinizer analysis return
"Client.php
==========
Line 41: The property "url" does not exist. Did you maybe forget to declare it?"
tobias-nitsche/GoogleTranslateBundle,WeCodePixels/GoogleTranslateBundle,tobias-nitsche/GoogleTranslateBundle,eko/GoogleTranslateBundle,eko/GoogleTranslateBundle,WeCodePixels/GoogleTranslateBundle