* Wrapper was showing it's age, dated syntax, zero tests, et cetera.
* Ported wrapper to Typescript.
* Actually, was a full rewrite, the original interfacing was too obscure.
* Added linting (Airbnb).
* Rewrite includes full feature parity with the Holiday API service.
* This includes support for additional endpoints and latest request parameters.
* Added a ton of additional examples to the README.
* Finally got testing into the mix.
* Added Travis for CI and Coveralls for coverage reporting.
