Release 1.0.0

With version 1.0.0, the first official major release, this library now supports all hex code string lengths! In other words, you can use color strings with:

• 3 chars: fff
• 4 chars: #fff
• 6 chars: ffffff
• 7 chars: #ffffff

Also, there is now unit tests (using Facebook Jest) and integration with Travis CI to ensure the library works as expected.

Happy New Years! 🎆 😄