mailer generator parameter inconsistency

If I want to create a mailer called UserMailer (in a file called user_mailer.rb) currently I have to write:

./script/generate mailer user_mailer ...

The generated view directory and file names also do not have the mailer suffix appended which is -in my opinion- not very logical. Even more so since when I create a controller I do it with:

./script/generate controller user ...

and not

./script/generate controller user_controller

So what I propose is to have the _mailer suffix appended to file and directory names and the Mailer suffix appended to class names. So then the following files will be created:

  exists  app/models/
  create  app/views/user_mailer
  exists  test/unit/
  create  test/fixtures/user_mailer
  create  app/models/user_mailer.rb
  create  test/unit/user_mailer_test.rb
  create  app/views/user_mailer/signup.erb
  create  test/fixtures/user_mailer/signup
  create  app/views/user_mailer/delete_account.erb
  create  test/fixtures/user_mailer/delete_account

See patch attached that does just this.