This allows to better control the posting process, notably using custom
layout to encapsulate emails. Previously to this commit a simple email was
send using a template. Now this template is used to post a message on the
record asking for customer request.
New parameters are added on the request send method
* a subtype, allowing some custom behavior with followers; by default the
behavior is to log a note with the customer being in the recipients list;
* composition_mode can be given and propagated to message_post_with_template
allowing a comment or mass mailing mode;
This commit is related to task 51122 (and PR #24052).
Pratima Gupta
9eb89131f3