Composer updated

Author: PBXg33k

composer.json

@@ -5,7 +5,8 @@
     "require-dev": {
         "phpunit/phpunit": "^5.3",
         "crada/php-apidoc": "^1.3",
-        "phpmd/phpmd": "^2.4"
+        "phpmd/phpmd": "^2.4",
+        "satooshi/php-coveralls": "<1.0"
     },
     "license": "MIT",
     "authors": [