Made monolog a required package

composer.json

@@ -9,11 +9,11 @@
   ],
   "require": {
     "php": ">=5.3.0",
-    "cakephp/filesystem": "^3.0"
+    "cakephp/filesystem": "^3.0",
+    "monolog/monolog": "^1.17"
   },
   "require-dev": {
-    "phpunit/phpunit": "~4.0",
-    "monolog/monolog": "^1.17"
+    "phpunit/phpunit": "~4.0"
   },
   "license": "MIT",
   "autoload": {