Turn Turnsole into a generic mail client

[William Morgan]

Hi Vivien,

Reformatted excerpts from Vivien Didelot's message of 2011-06-19:
> As Turnsole is a great mail interface, I was thinking about having it
> generic to multiple servers or mail sources, to fit many use cases.
> 
> Explicitely, the Turnsole::Client class (
> https://github.com/wmorgan/turnsole/blob/master/lib/turnsole/client.rb)
> could be turned into a Turnsole::Client module instead,

The server portion of turnsole, heliotrope, is explicitly designed to
support multiple clients and provides a JSON-over-HTTP interface for
that purpose.

The specifics of the protocol are still subject to change, but see e.g.
https://github.com/wmorgan/heliotrope/blob/master/lib/heliotrope-client.rb
for the ruby client that turnsole uses to communicate with the server.
-- 
William <wmorgan-sup at masanjin.net>