[buy] Total cost is dynamic change.
Merge branch 'master' of https://github.com/kazu-at-jp/OpenCoupon
[buy] Complete: next login
[login] New: Added login files
[login] Change: 色々と変更しました。
Merge branch 'master' of https://github.com/kazu-at-jp/OpenCoupon into develop
Merge pull request #16 from TomoakiNagahara/develop

Login を途中まで作成しました