Downgraded wpcs to 0.9

Author: Evertrotshuizen

composer.json

@@ -25,7 +25,7 @@
     "symfony/yaml": "~2.8",
     "squizlabs/php_codesniffer": "~2.2",
     "tinify/tinify": "dev-create-key",
-    "wp-coding-standards/wpcs": "dev-master"
+    "wp-coding-standards/wpcs": "0.9"
   },
   "scripts": {
     "post-install-cmd": "bin/post-install",