RSPEC_CONFIG_FILES impossible to configure

[bootstraponline]

Convention over configuration is great except when it's impossible to adjust. I have my sauce_helper in ./helper/sauce_helper.rb This generates an error:

Could not find Sauce configuration. Please make sure one of the following files exists:
  - ./spec/sauce_helper.rb
  - ./spec/spec_helper.rb
  - ./features/support/sauce_helper.rb

It'd be nice to support allowing the user to supply the exact location of the sauce helper so that the gem doesn't guess and then fail.