modernize

this guy only worked with rails 2 and was tests on rails 2 ... time for an upgrade ...

@jcheatham @steved555 @staugaard
I'll do a separate test for newer rails versions, but block untested
upgrades so we do not do untested updates again, was pretty hacky and
changed the log format

On Wed, Sep 24, 2014 at 12:59 AM, Pierre Schambacher <
notifications@github.com> wrote:

> In action_mailer-logged_smtp_delivery.gemspec:
>
> >
> > -  gem.add_development_dependency 'actionmailer', '2.3.16'
> > -  gem.add_development_dependency 'minitest'
> > +  gem.add_development_dependency 'actionmailer', '~> 3.2.19'
>
> What about using > 3.2.19 so we don't block a possible migration to Rails
> 4 ? [image: :smile:]
>
> —
> Reply to this email directly or view it on GitHub
> <https://github.com/eac/action_mailer-logged_smtp_delivery/pull/1/files#r17958310>
> .
>