Fixes Duplicate Key Warnings

[awmichel]

Fixes the following two warnings about duplicate hash keys:

/Users/***/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/people-0.2.1/lib/people.rb:276: warning: duplicated key at line 279 ignored: :parsed
/Users/***/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/people-0.2.1/lib/people.rb:277: warning: duplicated key at line 280 ignored: :parse_type

[awmichel]

Didn't check existing PRs, looks like #5, #6, #7, and #9 are all related.

[djudd]

I was about to make yet another, glad I checked first. Looks like this repository is dead, unfortunately. @mericson ?

[sshaw]

Yes, @mericson is active, just not giving this any love 😿 💔

@djudd's version looks legit. @djudd, what do ya say?

[sshaw]

Any of you folks used nameable?

[djudd]

This fork has some fixes and performance improvements, and we're using pretty heavily it in production at Academia.edu: https://github.com/academia-edu/people

I was not previously aware of https://github.com/chorn/nameable but it looks like it could be helpful. The parsing implementation seems to be similar to the People gem, a bit easier to read, but with no explicit handling of initials.

There's also https://github.com/berkmancenter/namae, which uses a grammar instead of ad-hoc heuristics - misses some cases as a result but also covers some new ones.

I'm working on a Rust library https://github.com/djudd/human-name - as a side project to learn Rust, but with the intent of possibly using it in production eventually. It's currently at an alpha stage, but ~30x faster than the Ruby gems I've tested, and adds intelligent equality testing. I do intend to write Ruby bindings at some point, but that's probably at least a few weeks away.