mailgun + translation

[agborkowski]

No description provided.

[eLod]

hey sorry for such a long time without response.

first thank you for your PR, can you please rebase onto my master without the other commits, they seem to be in conflict with the current codebase?

also why not simply add all the aliases? e.g. this->outputFilters += compact('h'') + Message::aliases() + $this->_config['outputFilters'];? (or even putting them into _config['outputFilters'] in _init())