Merge pull request #102 from KazumaKobayashi/master

StatusCodeUtilの作成と各ControllerへのStatusCodeの適応
Remove jsp.
Merge branch 'develop' of https://github.com/KazumaKobayashi/fierce-escarpment-6843 into develop
fixed typo and #110
Small refactor. fixed #107
Fixed bugs. #111 #108
Change README.md. closed #80
Merge pull request #114 from KazumaKobayashi/develop

バグ修正