Reset config to pick up command line arguments

[namick]

I often switch between using just rspec and rspec -fd. This makes that possible.

[nviennot]

That's weird.

The call on ::RSpec.reset removes the @configuration instance:

• https://github.com/GoodGuide/rspec-console/blob/master/lib/rspec-console/runner.rb#L12
• https://github.com/rspec/rspec-core/blob/master/lib/rspec/core.rb#L54

So how would rspec remember the old cli arguments?

[nviennot]

I've pushed a new version, I couldn't reproduce that bug with that version.