Merge pull request #5 from carlosvasquez/master

Cambios en feriados para resolver el issue #2 e implementar mejoras
Merge pull request #6 from carlosvasquez/master

Agregando definición del proyecto
Merge pull request #7 from carlosvasquez/master

Ajustando .travis.yml
Adding ability to get a response other than json.
Merge pull request #8 from cuantico/master

Adding ability to get a response other than json.
Merge pull request #3 from developersdo/master

merge