Case Insensitive Sort

[schlick]

Here's a scenario that would be nice if naturally could handle:

['a', 'b', 'c', 'A', 'B', 'C'] => ['A', 'a', 'B', 'b', 'C', 'c']

Currently naturally returns:

Naturally.sort(['a', 'b', 'c', 'A', 'B', 'C']) => ['A', 'B', 'C', 'a', 'b', 'c']

[dogweather]

I can imagine that this would be best handled by an option to specify particular sort orders like these.

[dogweather]

I'm going to close this as a "won't do" for the time being. If demand increases, or a pull request is submitted, then I'll revisit it.