[#56226944] refactoring login.feature
[#56226944] add register.feature
[#56226944] add registration form to homepage
[#56226944] add first and last name to User
[#56226944] add confirmable module to User
[#56226944] add strong parameters to devise
[#56226944] add default host to email testing
[#56226944] remove failing scenario
[#56226944] add user confirmed_at to blueprint; add default path for sign in
fix conflicts