Description:

Copy mailers into the host app for customization.

Example:

rails generate mr_common:mailers

This will create view overrides for customization at:
    app/mailers/mr_common/registration_mailer.rb
    app/views/mr_common/registration_mailer/unconfirmed_registration.html.erb
    app/views/mr_common/registration_mailer/unconfirmed_registration.text.erb
    app/views/mr_common/registration_mailer/confirmed_registration.html.erb
    app/views/mr_common/registration_mailer/confirmed_registration.text.erb
    app/views/mr_common/registration_mailer/revoked_registration.html.erb
    app/views/mr_common/registration_mailer/revoked_registration.text.erb
    app/views/mr_common/registration_mailer/_html_reminders.html.erb
    app/views/mr_common/registration_mailer/_text_reminders.text.erb