added version requirement for php-proxy

Author: Athlon1600

composer.json

@@ -6,12 +6,12 @@
 	"keywords": ["php proxy application", "php proxy web", "proxy script", "php web proxy", "web proxy"],
 	"homepage": "https://www.php-proxy.com/",
 	"require": {
-		"athlon1600/php-proxy": "dev-master",
+		"athlon1600/php-proxy": "^5.0.1",
 		"athlon1600/php-proxy-plugin-bundle": "dev-master"
 	},
 	"scripts": {
 		"post-create-project-cmd": [
 			"php -f setup.txt"
 		]
 	}
-}
+}