dependencies fixed: fphammerle/helpers is required in production

composer.json

@@ -9,11 +9,11 @@
     ],
     "require": {
         "php": ">=5.4.0",
-        "yiisoft/yii2": "^2.0"
+        "yiisoft/yii2": "^2.0",
+        "fphammerle/helpers": "^1.2"
     },
     "require-dev": {
-        "phpunit/phpunit": "^4.8",
-        "fphammerle/helpers": "^1.2"
+        "phpunit/phpunit": "^4.8"
     },
     "autoload": {
         "psr-4": {