When testing a mass mailing before sending the mailing
to the contacts (which well, is always the case),
the local links were not replaced by absolute links,
and the override done on the method `send_get_email_dict`
to convert the link `/unsubscribe_from_list` to the actual
unsubscription link was not working, as it relied
on the absolute link.
opw-657982
1. The merge of the "email_template" module into the "mail" module.
2. The send action of the mass mailing has been moved from the frontend to a cron, because it was too slow to send over 10,000 mails (the user's browser was blocked for 15 - 20 minutes). Mass mailings have now their own process in the kanban view.
3. Mails sent from the mail form are sent immediatly instead of from the mail queue (for instance, when you go to sales > customers > list view > select 2 -3 customers > More > Partner Mass Mailing).
4. Users have now the choice from which mailing list they want to unsubscribe when they click on the unsubscribe link at the bottom of the mail.
5. Mass mailings inherit from their campaign UTMs and mass mailing campaigns are linked to an UTM campaign.
6. Many little improvements
- mail: now trigger postprocess_sent_message in every case, being sent or not, as the state
is propagated in the method; udpated all addons accordingly;
- email_template: fixed URL to edit it in website + form view;
- mass_mailing: barchart now send jsonified value;
- mass_mailing: tweaking the form view with all options
bzr revid: tde@openerp.com-20140408124053-o9tb14k6v47s5mjd