New feature for mailer

[ujifgc]

Implemented new way to call render in mailers. It allows to omit mailer name or mailer name and message name.

Example:

  mailer :sample do
    message :message2
      render 'congrats' #=> renders from 'sample/congrats'
    end
    message :message1
      render #=> renders from 'sample/message1'
    end
  end

padrino/padrino-framework@cc6fe63

ref: padrino/padrino-framework#1906

[nesquena]

Nice! Thanks for noting that this needs to be updated in the docs too.

[wikimatze]

I'll take care of this!