odoo/odoo — pull request #3716 by ara-odoo (2014-11-18 10:26:13+00:00)
Title: [ADD] mail : add compose mail button on top to send a private message to...

... someone
https://www.odoo.com/web#id=10411&view_type=form&model=project.task&menu_id=3942&action=327
pad: https://pad.odoo.com/p/r.seEjnoFNWnLPalE7