初期環境設定
Merge pull request #1 from raduwen/feature/env

環境設定
welcome
Merge pull request #2 from raduwen/feature/welcome

welcome
guard growl
Upload model and controller
Merge pull request #4 from raduwen/feature/upload

Upload Model
Upload Viewの修正

- helper削除
- controllerのリファクタリング
Merge pull request #5 from raduwen/feature/upload_view

Upload form