Fixed composer install

Author: 66Ton99

composer.json

@@ -31,7 +31,7 @@
         "phpunit/phpunit": "3.7.*",
         "behat/mink-bundle": "dev-master",
         "behat/mink-selenium2-driver": "1.1.0",
-        "satooshi/php-coveralls": "dev-master",
+        "satooshi/php-coveralls": "v1.0.*",
         "se/selenium-server-standalone": "2.45.0"
     },