FEATURE: optimize composer.json

This commit removed unneccessary packages. It also moves some of development packages into require-dev section.

composer.json

@@ -9,11 +9,8 @@
   "require": {
     "php": ">=5.5.9",
     "laravel/framework": "5.2.*",
-    "phpmailer/phpmailer": "^5.2",
     "pingpong/modules": "~2.0",
-    "league/flysystem": "^1.0",
-    "pingpong/menus": "^2.2",
-    "barryvdh/laravel-debugbar": "^2.1"
+    "pingpong/menus": "^2.2"
   },
   "require-dev": {
     "fzaninotto/faker": "~1.4",
@@ -21,7 +18,8 @@
     "phpunit/phpunit": "~4.0",
     "symfony/css-selector": "2.8.*|3.0.*",
     "symfony/dom-crawler": "2.8.*|3.0.*",
-    "ignasbernotas/laravel-model-generator": "^1.0"
+    "ignasbernotas/laravel-model-generator": "^1.0",
+    "barryvdh/laravel-debugbar": "^2.1"
   },
   "autoload": {
     "classmap": [