Version 0.1.0 (WiP)

It currently implements basic functionality to be usable. It needs more specs and some improvements to the API. For example, I'd prefer to interact with an object specific to an auth request rather than pass strings and hashes around:

```ruby
auth = LaunchKey::Auth.new(username: 'joe')

until auth.finished?
  auth.poll
end

if auth.valid?
  # the user accepted
else
  # the user rejected
end
```

Additionally, the `LICENSE.txt` and `launchkey.gemspec` need to be updated. I vote for MIT, BSD, and similar open source licenses.

Anyway, feedback and review welcome. Thoughts, @jwoertink?