[#57231002] As an user, i should receive a reminder email for my subscription repayment

- Send an email payment reminder for subscriptions
- Refactor reoder to create a order in payment state
- Add missing gems to run rspec and capybara tests
- Fix broken specs
Merge pull request #10 from crowdint/feature/send_reorder_email

[#57231002] As an user, i should receive a reminder email for my subscri...