Update rails version
Use secrets.yml
Update rails version to 4.1.5
Merge branch 'master' into migrate-to-rails4.1

* master:
  ignoring patch number
  3.0.0
  Change travis configuration

Conflicts:
	suscribir.gemspec
Merge pull request #28 from Soluciones/migrate-to-rails4.1

Migrate to rails4.1