fixed scripts option in composer

Author: Athlon1600

composer.json

@@ -9,7 +9,9 @@
 	"require": {
 		"athlon1600/php-proxy": "@dev"
 	},
-	"post-create-project-cmd": [
-		"php -f setup.txt"
-	]
+	"scripts": {
+		"post-create-project-cmd": [
+			"php -f setup.txt"
+		]
+	}
 }