Notify the author of a proposal on answering

[microstudi]

Original requirement:

As author of a (reporting) proposal, I want to get an e-mail notification when there is a new answer to my proposal including the link to the proposal.

Implementation

• Add a configuration option:

config_accessor :notify_authors_on_answering do
  [:proposals, :reporting_proposals]
end

• Respecting the configuration, send the (Co)Author(s) of a proposal an email when the proposal is answered. It must include the link to the published proposals in the body.