Updating Gemfile.lock
Renamed a_sendgrid! to enviar! as it revealed implementation details
Stop using suscripciones
Removed unused stuff
Merge branch 'master' into forget-suscripciones

Conflicts:
	Gemfile.lock
	app/models/news_tematica/news_tematica.rb
	spec/models/news_tematica/news_tematica_spec.rb
	test/dummy/app/models/suscripcion.rb
Merge branch 'master' into forget-suscripciones

Conflicts:
	Gemfile.lock
Changing enviar_newsletter_a_suscriptores_tematica call by enviar_newsletter_a_suscriptores_suscribible (new Sendnews API)
Merge pull request #27 from Soluciones/forget-suscripciones

Forget suscripciones