Add files via upload

Author: mianzaid

composer.json

@@ -41,7 +41,7 @@
 		"php": ">=7.0"
 	},
 	"require-dev": {
-		"phpunit/phpunit": ">=5"
+		"phpunit/phpunit": ">=6.0.0"
 	},
 	"suggest": {
 		"ext-gd": "to use GD library based image processing."