[IMP] analytic,account_analytic_analysis,project : Display Chatter messa...

...ge on creation of contract based on its type

- Task: https://www.odoo.com/web?&debug=#id=9743&view_type=form&model=project.task&menu_id=3942&action=327
- Pad: https://pad.odoo.com/p/r.UXI6LdteDMoXj0GE
Done!
move _track back to analytic.